Landlord Guide On The Legionella Risk Assessment Legislation

Landlord Guide On The Legionella

Over the years, I’ve managed to accumulate quite a dusty pile of emails from a rather large group of puzzled landlords, all thirsty for information on the whole landlord Legionella Risk Assessment Legislation, which seems to be a real head-scratcher among the masses.

They’ve heard something about it, but not really sure what, where or how.

If you’re one of the aforementioned head-scratchers, this is probably the blog post for you! The landlord’s guide to the Legionella Risk Assessment Legislation

Now, if you have no idea what I’m talking about, you’re forgiven, because while the landlord Legionella legislation is a legal obligation and isn’t anything new, there’s definitely an unwritten rule among landlords and letting agent, which stipulates it’s better left untouched, because no one really knows what the fuck it is, or why it even exists. It’s just an odd freak of nature that’s mostly ignored.

It’s so odd that there’s very little guidance on it, and the very little there is is utter dogshit. Even the official HSE website does an embarrassing job; there’s a lot of fluff, but no practical instructions covering what we actually need to do in order to comply. Ironically, when you do actually read the details that are available (after 2 prerequisite shots of espresso), it just seems like a completely pointless legislation (which will quickly become evident as I comb through the details for you).

If I were to hazard a guess, I’d say most landlords don’t comply, whether that be intentionally or unintentionally. Actually, I’ll go one step further and say I’d bet your left nut-sack on the fact it’s the most neglected legal obligation, even by letting agents.

Page contents

The Landlord Legionella Law

Please note, these guidelines apply primarily to landlord’s in England. Other regions are similar but there may be important differences.

You can access a full detailed guide on the legalities on the HSE website; feel free to fill your boots with that luscious drivel. Enjoy.

But over here, where killing you of boredom isn’t always priority number one, I’m just going to smash n’ grab what I consider to be the need-to-knows, with a little extra narration for added spice…

Section 3(2) of the Health and Safety at Work Act 1974 (HSWA) makes provision for relevant health and safety legislation to apply to landlords to ensure a duty of care is shown to their tenants’ with regard to their health and safety.

The Control of Substances Hazardous to Health Regulations 2002 (COSHH) provides a framework of actions to control the risk from a range of hazardous substances, including biological agents (eg Legionella) – to identify and assess the risk, and implement any necessary measures to control any risk.

That all seems pretty straightforward; landlords need to comply with health and safety legislation, which includes the control of Legionella. Got it.

What you must do to comply…

The practical and proportionate application of health and safety law to landlords of domestic rental properties is that whilst there is a duty to assess the risk from exposure to Legionella to ensure the safety of their tenants, this does not require an in-depth, detailed assessment.

Good. No one likes in-depth!

A simple assessment may show that there are no real risks and are being properly managed and no further action is needed. It is important to review the assessment in case anything changes in the system.

For most domestic hot and cold water systems, temperature is the most reliable way of ensuring the risk of exposure to Legionella bacteria is minimised ie keep the hot water hot, cold water cold and keep it moving. Other simple control measures to help control the risk of exposure to Legionella include:

  • flushing out the system prior to letting the property
  • avoiding debris getting into the system (eg ensure the cold water tanks, where fitted, have a tight fitting lid)
  • setting control parameters (eg setting the temperature of the hot water cylinder (calorifier) to ensure water is stored at 60°C)
  • make sure any redundant pipework identified is removed.

The risk is further lowered where instantaneous water heaters (for example combi boilers and electric showers) are installed because there is no water storage.

I mean, that sounds good and all… but, that’s not really useful guidance on ‘what to do’. What does “flushing out the system” actually mean?

Unfortunately that’s as far as the guidance goes, and that’s precisely why I decided to get off my rotund ass and actually do something about it. Not without help, mind you. I ain’t that useful.

Do you know what makes it even more confusing? I’ve shuffled through various other articles published by reputable landlord websites to see what they have to say on the matter, and I’ve been scratching my dizzy head ever since. They make the assessments seem ridiculously complicated, and they recommend checking shit that isn’t even covered in the official HSE website. So I wonder where they are actually getting their information from! It seems like they want you to go above and beyond just for ‘good practise’. I want no part of that, so I’m going to stick by the HSE guidelines.

Landlord Legionella Risk Assessment Video Guide (How to conduct a Legionella Risk Assessment)

I’ve been wanting to throw this video together for donkeys, but I didn’t have the contacts. Eventually, I struck up a deal with Upad; their end of the deal was to hook me up with an expert in disease-ridden H20 who was willing to prance around in front of the camera, while in return, I have to ‘service’ one of their longest-serving employees, Helga, who has had a hard and slow dating career.

I hope you appreciate the hit I’m taking for you guys. But man, Upad really do take care of their staff.

So, the following Legionella video guide is a collaboration of my brain child (stemmed by the thought of thousands of landlords not understanding the legislation, which caused me many sleepless nights), Upad’s swanky… err Pad, and the Legionella experts, Euro Environmental.

Please note, this video is for guidance purposes only, and does not constitute legal advice. You should always seek professional advice to ensure you meet your landlord obligations.


A template logbook is available to download below.


The assessor said any standard digital thermometer will suffice to take the temp, including cooking probes, which are often shoved into poultry. I found this reasonably priced one on Amazon (which actually looks quite similar to the one in the video), but there are tonnes to choose from…

Minimising risk

From my interpretation, you just need to make sure there is a minimised risk of Legionella, which generally entails:

  • Ensure the main water source outlet pipe reaches above 50 degrees.
  • Flush the hot water cylinder (calorifier) on an annual basis
  • Ensure the closest and furthest cold/hot water outlets meet the right temperatures. Hot water should reach above 50 degrees, the cold should reach below 20 degrees, both with in 1 minute of turning on the tap.
  • Disinfect the showerhead and hose with regular domestic disinfect.

If the required temperatures aren’t achieved, you can try adjusting the settings until they do. Failing that, you may want to contact a gas safe registered engineer to assist in hitting those targets.

So there you have it. That’s how landlords comply according to Euro Environmental! Or at least, for that very typical property setup.

Is that any clearer for you? Sweet.

Who can assess the Legionella risk?

Ok, so the variating answers to this question is what actually spurred me into getting the video created (along with the total lack of practical guidelines).

For those agents that don’t avoid direct eye contact with the legislation, many of them are doing exactly what you’d expect them to do- abuse our trust by profiteering from our ignorance. And I fear more will only join the club by paying attention to the legislation but for all the wrong reasons…

A while back I caught a vulgar whiff of some rather unsettling news- apparently a growing number of letting agents are extortionately charging landlords for arranging assessors to conduct the risk assessments, and of course, scaremongering landlords into getting it done.

I have no doubt in my mind that agents have made a nice cherry on top from those assessments, and are continuing to do so, particularly by peddling the shameless lie of needing a qualified assessor to comply, along with grossly exaggerating the intricacy of the process.

I’m sure many of those agents don’t make the following clear…

In most cases, the actions landlords need to take are simple and straightforward so compliance does not need to be burdensome or costly. Most landlords can assess the risk themselves and do not need to be professionally trained or accredited; but if they do not feel competent, or inclined to do so, they can arrange for someone who is to do it on their behalf. Most landlords are able to understand the set of risks of running a hot and cold water system in a way that provides the above conditions; and would also be able to implement cheap, simple and effective physical control measures required to minimise the risk of the system becoming colonised with Legionella and other microorganisms.

Furthermore, Case 357 on the HSE website, highlights how consultants and letting agents have been spreading misinformation on the matter, which has imposed unnecessary financial burdens on landlords where they are being charged for legionella testing and certificates they don’t actually need.

Email from agent to landlord

Here is an email that one of my reader’s received from their agent…

Legionella legal update

Has your property been checked for legionella? You can read more information on landlord’s requirements in the following link:

As your property manager we have taken legal advice, and can confirm that it is a legal requirement that a full risk assessment is carried out. We are able to assist by arranging the following:

Properties that are mains fed without storage tanks – A legionella risk assessment and certified clean & disinfection of ALL showers and shower heads

£95 + VAT

Properties that have storage tanks – A legionella risk assessment, certified clean & disinfection of ALL showers and shower heads, and a certified clean & disinfection of ALL cold water storage tanks

£175 + VAT

Please contact our office should you want to book either of these services.

Please, do not allow an agent to bully you into believing anything other than the following…

  • Landlords do NOT need a certificate or some kind of elaborate test!
  • You CAN carry out the legionella risk assessment yourself (as long as you’re competent), so you do NOT need an external asshole to assist.

Professional Legionella Risk Assessment Service

If you don’t feel comfortable or qualified to conduct a Legionella Risk Assessment yourself, or if you just can’t be assed with the hassle (I truly emphasise), you can throw money at the problem. You can order an assessment online from

Professional Legionella Risk Assessment Service
SupplierNotes / IncludesPrice
Notes / Includes

Conducted by a professional inspector, your assessment will identify any risk of legionella bacteria in your property’s water system and highly any measures needed to keep your tenant healthy and property safe.

  • Full water system risk assessment
  • Recommended every 2 years
  • Carried out by a professional assessor
  • Ensures your water is safe to use
£119Inc VAT
(Normal price: £129)
More Info

£10 Discount Code: PIP10

Please note, I try my best to keep the information of each service up-to-date, but you should read the T&C's from their website for the most up-to-date and accurate information.

Keeping a record of the assessment

Landlords are not necessarily required to record the findings of the assessment (this is only a statutory duty for employers where there are five or more employees), but they may find it prudent to keep a record of what has been done for their own purposes.

Truly baffling. Even though the video guide recommends logging the readings, you don’t actually need to in order to comply (unless it’s a commercial property, and you’re the employer of 5 or more people). So my question is, how does anyone actually prove/disprove that the legislation has been complied with? Then again, it’s not like the logbook can’t be scammed and back-dated.

This is clearly where the legislation starts to unravel… into a bag of pointless shit.

Reviewing your risk assessment

The law does not prescribe that the risk assessment be reviewed on an annual or biennial basis. It is important to review the assessment periodically in case anything changes but where there are difficulties gaining access to occupied housing units, appropriate checks can be made by carrying out inspections of the water system, for example, when undertaking mandatory visits such as gas safety checks or routine maintenance visits.

Right. So while it’s recommended to do an initial assessment at the beginning of each tenancy, there’s no set period when you need to reassess. Basically, whenever.

Bah. What the fuck is this legislation? Other than a piece of shit, I mean.

Is this really saving lives and/or a shit-storm of bad tummies and diarrhea? If it is, I’m struggling to see how. To clarify, I don’t disagree with the principle of landlord’s minimising the risk of legionella, but I don’t see how the flimsy requirements of the current legislation is actually doing that.

In any case, Landlord Zone recommends to review the risk assessment annually and in the following situations (even though HSE doesn’t say it’s necessary):

  • There are changes to the water system or its use.
  • There are changes to the use of the building in which the water system is installed.
  • New information about risks or control measures becomes available.
  • The results of checks indicate that control measures are no longer effective.
  • A case of legionellosis associated with the system has been diagnosed.

Penalty for failing to comply…

So while this all seems like a royal waste of time and a total dud, it still is, of course, imperative to comply, because there can be ugly consequences otherwise… err… possibly…

… if a tenant were to contract Legionnaires’ disease from the water system in their home, the landlord may be liable to prosecution under HSWA, and would have to demonstrate to a court that they had fulfilled their legal duty, so it is important that they assess and control the risks.

I tried Googling around for some specific cases where landlords have been prosecuted for failing to comply, but to no avail, which wasn’t terribly surprising. I’m not saying it hasn’t happened, but if Google is struggling to find cases, it might be safe to assume you’re more likely to get hit by lightning than have some wally sue you over contracting legionnaires disease.

Has there ever been a case where such penalties have been dished out to a private landlord? Meh, I don’t know. But I suspect there to be a very limited amount if there has, simply because it seems extremely difficult to point-blame.

I did find this one case though, where a housing association has been fined £12,000 following an outbreak of Legionnaires’ disease at a sheltered housing scheme. However, that’s an entire housing association, but it does prove there are penalties.

While I don’t necessarily see the point in any of this… as always, it’s best to roll over and do as you’re told by the powers that be, no matter how stupid. Sigh.

So, a couple of questions for you…

  • Were you aware of the legislation?
  • Do you comply with the legislation? If not, are you going to make an effort from now on?
  • Have you paid or been bullied by an agent to fork out for an assessor?

Got any questions? Probably not worth asking me on this matter, but I’m sure someone will be able to assist.

Hope this round-up has been useful! xoxo

Thank you

Thanks to Upad for providing the location and hooking me up Euro Environmental, and thank you to Euro Environmental for dropping the knowledge, and last but not least, thank you to my homeboy behind the camera for bringing it to the screen…

Legionella Video Cameraman

Legionella Video Cameraman

Landlord Legionella Logbook

As said, even though the HSE says you don’t need to log your recordings in order to comply, it’s probably a good idea to jot them down to protect yourself from any unsavoury (and evidently unlikely) legal proceedings. So feel free to download the template I threw together, but use at your own sweaty risk :)

Legionella Logbook Sample

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32 Join the Conversation...

Guest Avatar
Robin 19th May, 2017 @ 08:08

Good article - it is one of the vaguest pieces of legislation out there. I looked into it a few years ago and came to the same conclusions; the penalty for not complying is……if your tenant gets legionnaires disease you might be in trouble. I’m not sure you need legislation to tell you that.

For most properties with a combi boiler I really don’t see where the risk is. I decided to arm myself with a thermometer and do my own assessments, starting with my own house as a trial. My conclusions were that in my house the main area of risk is the spa bath (my wife is semi-aquatic I think) and the advice was to make sure it was flushed out and cleaned with spa bath stuff. So the action is upon the occupier.

So now, as part of my rental pack I include some basic advice (via google) about avoiding Legionella, and carry out a basic check of the house before rental. For a house with a combi and nothing odd like a spa bath the advice seems to consist of descaling things and flushing water through if the property has been left empty for a while.

Another piece of legislation good landlords, likely with low risk properties, will at least have heard of and possibly complied with, but the bad landlords with rubbish manky houses will totally ignore – what is the point?

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David 19th May, 2017 @ 08:22


Very informative, who knew?

I bet most landlords are not aware of this but would be wise toc omplu

Thanks for bringing this to the attention of at least 40,000 landlords.

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Joss 19th May, 2017 @ 08:47

Brilliant article. Thanks for sharing.

P.s. I bet he likes eggy bread.

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Michelle 19th May, 2017 @ 11:24

Thanks for the information - always a good read! Just one comment to make - I'm female and therefore do not have a nut sack to bet on!!!!

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Steve 19th May, 2017 @ 16:35

Your right to put your left nut up for grabs due to different plumbing (on topic ?) from the right, if you get to the size of that landlord that doesnt like curry flavour in his properties (cant be arsed to google his name) and i dont mean his portfolio size, then the pressure (back on topic ?) presses on the left one. I dont think Helga will notice and id also put my left one up from grabs if any property with a combi boiler gets the disease.

The Landlord Avatar
The Landlord 21st May, 2017 @ 10:41


if your tenant gets legionnaires disease you might be in trouble. I’m not sure you need legislation to tell you that.

Couldn't agree with you more, and with very little evidence of prosecution (at least from what I've seen)... even the "might be in trouble" part seems a stretch.

Doing an initial check and supplying some basic advice about avoiding Legionella seems more than enough!

The Landlord Avatar
The Landlord 21st May, 2017 @ 10:46


I love how you still call me Flossy!

I agree, better to comply, especially since it's a relatively easy process!

My main hope is that landlords don't continue to get scared and ripped off by agents over this matter. Since publishing this blog, I've received a lot of emails from landlords saying they received letters from their agents regarding the matter!!

The Landlord Avatar
The Landlord 21st May, 2017 @ 10:48


Thanks Michelle, appreciate it :)

Point taken regarding female/lack of nutsacks. I can only say that I like to treat everyone equally, so that comment was based on the fact that I hypothetically gave all humans nutsacks and boobs, regardless of gender!

Are we good?

The Landlord Avatar
The Landlord 21st May, 2017 @ 10:52

Fergus Wilson (yes, he even sounds like a tossor).

Yeah, as Robin said (comment #1), I don't see how combi boilers are at risk... but the assessment is still required, regardless. HSE says the "risk is further lowered" with combi's!

Since last year, all my properties have been installed with combi's.

I'll give Helga your regards, Steve :)

Guest Avatar
Danny 22nd May, 2017 @ 00:44

Great article, this has confirmed that I am doing things as they should be.

The Landlord Avatar
The Landlord 22nd May, 2017 @ 10:02

Thanks Danny, and good to hear :)

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Natalie 22nd May, 2017 @ 15:25

Thanks for a good post. Most landlord acquaintances of mine are still ignoring this although my risk assessment is moving amongst them!

It took me an afternoon's work to produce my first assessment two years ago, and will shortly be updating for new tenants - I've just sanitised the taps and shower head and will do temps after boiler service this week.

I devised my own in depth risk assessment template which includes the comprehensive overview of the system, the readings and identification of clear responsibilities i.e. landlord is responsible for boiler, but tenant responsible for notifying faults etc. I leave it in the property with an overview of legionella and how to mitigate risk i.e. good hygiene (laugh out loud...) and keep the hot, hot and the cold, cold.

I use a good old fashioned mercury thermometer (acquired from a previous job).

For me, it was definitely worth the time to save more money going down the plughole (at the correct temp of course!). Although I guess I have an advantage as the full system is less than five years old.

One of my mother's tenants has cancer, so as his health increases his legionella risk she asks the gas man to do the temp checks when he goes in to CP12 and note on the invoice.

The Landlord Avatar
The Landlord 23rd May, 2017 @ 19:09

Sounds like you've gone above and beyond (not a bad thing at all). You're the second person that has mentioned that they provide a welcome pack with all the details. Sensible.

Most landlords I've spoken to either ignore it or are unaware of it. But for such little time and effort, it makes little sense to brush it aside. As said, most letting agents don't even mention it, which I personally think is a disservice to landlords that are relying on their expertise.

Thanks for the comment :)

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Sally 24th May, 2017 @ 14:36

Thank you for another great article! Can I ask if a brick and mortar letting agent will have done a test? I'm about to take over the management of my property from an agent but they have mentioned this...?

The Landlord Avatar
The Landlord 24th May, 2017 @ 14:52

Thank you :)

It's not the agent's legal obligation to do the risk assessment, so I doubt it. Either way, I think it's always safer to assume they haven't.

In any case, you could ask them...

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Lisa 24th May, 2017 @ 16:22

I don't normally comment on these posts but do enjoy reading them very amusing. As an agent just wanted to say we do not charge our landlords for this very simple risk assessment unlike other agents, I normally do a similar report to the one you have provided once a year on an inspection and another at the start of a new Tenancy. There are some decent agents out there and very proud to say we are one of them.

The Landlord Avatar
The Landlord 24th May, 2017 @ 19:39

I agree, there are decent agents out there like yourselves... but not always easy to find. Good to hear you speaking out! You should do it more often :)

Thanks for making an exception for coming out to play this time!

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Allan 26th May, 2017 @ 19:45

Some good comments above, although take a few issues with how to carry out an assessment as presented by Euro Environmental pertaining to domestic properties. But can confirm the requirement to have a risk assessment applies to the whole of the UK.

Not all properties have combination boilers and many have dead legs. Also many properties have HW at scalding temperatures, which is a far higher risk than legionella. A good competent assessor understands the conflicting requirements and interpretation of L8 as applicable to residential installations.

The Landlord Avatar
The Landlord 26th May, 2017 @ 20:50



The guide was just intended to be a 2min basic overview of how to at least minimise the risks of legionella and comply, as opposed to going through various plumbing systems, and other plumbing issues.

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DavidM 1st June, 2017 @ 08:06

Last summer we let a house that had been empty for around four months and asked the landlord if he wanted us to carry out a legionella assessment and surprisingly he did so we called in the professionals and they did the normal temperature tests and sent off water samples for analysis. A week later they reported to us that the water samples contained legionella bacteria but suspected it was because so much water had been sitting in tanks for months on end so they flushed the system through, retested a week later and reported back that all was well. He told me that it was the first time in five years of testing residential property that he had ever found legionella which I think tells you all you need to know about the likely risk. For the record the company charge £120 and that is what the landlord pays!

The Landlord Avatar
The Landlord 2nd June, 2017 @ 08:54

That's an interesting case study, thanks for sharing David!

I'm assuming the property was unused/vacant for several months? In any case, good reminder just to flush the system between tenancies, particularly if the property has been vacant for some time.

Thanks again!

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Ian 28th July, 2017 @ 01:58

We have to have a legionella test every year at the place I work and manage. Our last report said we were at medium risk because we had an overflow pipe that was constantly dripping and several dead legs.
If you are the landlord of an older property it is worth considering.

Also, and seperately, this is yet another thing that I have found out in the last 48 hours is something I should be doing as a landlord that I didn't previousley know about!
WITH all of the experience and knowledge there is on this site, can someone please point me to anywhere where a bloke who can't sell his house because he bought it at the height of property prices so when he decided to hitch up with his beloved he rented instead of making a loss on his investment, (and breathe) can go and get a definitive, plain, simple English, everything you need to have to be the perfect landlord list of what you should do by when and how to keep up to date with all of the frequent changes to this, that or the other law/legislation/guideline?

I work in the care industry and I can guarantee there are very few of you who will know all of the legislation and law we need to abide by but you all go to your GP's and the hospital trusting they are all complying and doing what they should. But I work in that industry and it is governed and you have to be licencsed or registered with a medical body (such as the CQC in my case) and we are all inspected and tested to make sure that we comply with correct laws and governance.
However, anyone can be a landlord, with no training or guidance and trying to find the right information to do everything correctly is almost impossible, I certainly didn't find anything like this site when I was starting out 3 1/2 years ago. No wonder so many get it wrong (and before anyone says it I know ignorance of the law is not an excuse to break it). Im also not suggesting we should all be licensed asntht would just kill off the rental market and then people wouldnt be able to afford or find housing and that is not good. But the government have to make it easier for landlords to know what ALL of their obligations are. After all, how can we be expected to get it right when some of the agents and solicitors who work in the sector can get it so wrong?

I have learned over the last 48 hours that I need to be approaching the renting of my property with the same risk averse attitude that I do in my day to day job and to treat it more like a business, even though it is only 1 property. I honestly, honestly did not realise there was so much to just renting your house.

I will be taking Flossy's advice and putting together a pack or dossier of documents and information that any future tenants will need to sign or have as information. Again, if anyone can point me in the direction of such a list, if it already exists, I would be hugely grateful.

And, as it is now 3 in the morning, I'm going to try and get some sleep and not worry myself into a stressed, emotional state about what else I could have possibly not done that I should have done, although I am sure there will be something if not several things.

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Adi 14th September, 2017 @ 14:13

Hi Landlord!

Thanks for all you do on this blog. As a mid-twenties person who somehow managed to buy a property without help on her own, I've been in over my head on trying to sort out the correct procedure for this particular 'risk.' Unless I'm just being daft (very possible) -from above, am I right in saying there is NO legal requirement to keep a formal log of assessment? As you mentioned below, even if one did, what's to say that it could actually be verified?



The Landlord Avatar
The Landlord 14th September, 2017 @ 18:37

Hi there!

Unfortunately, you're not being daft, the legislation actually appears to be that odd.

From what I can tell, and according to the HSE website, there is no legal requirement to keep a log.

The HSE website says the following:

Landlords are not necessarily required to record the findings of the assessment (this is only a statutory duty for employers where there are five or more employees), but they may find it prudent to keep a record of what has been done for their own purposes.

HSE and Local Authority inspectors do not proactively inspect domestic premises or ask for evidence that landlords have undertaken a risk assessment.

It's just so weird!

Guest Avatar
Ross Talarico 5th February, 2018 @ 15:41

Great site.

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Tom 17th June, 2019 @ 20:15

Sorry if this is a stupid question but how does one "flush out the system" what system? The boiler? Who would be able to do this? I've got a combi boiler in the rental and renovated the whole property 2 years ago and get my annual gas service / safety check done. However if the fee is reasonable I may hire someone to carry out an assessment - do you recommend any? Cheers tom

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Tom 17th June, 2019 @ 20:21

Also, in the video it says find your calorifier, I don't even think my house has one - I have a combi boiler -do properties with combi boilers have these?

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Allan 19th June, 2019 @ 08:44

Hi Tom - flushing with respect to this topic is simply running the water for a few minutes such that water which has been stagnant is replaced with fresh water. The term clarifier is better understood as the hot water cylinder, and correct not applicable to systems with a combination boiler. In terms of fee for a professional assessment this should be not more than around £60.00, and expect the assessment report to be valid for 10 years. Assessors tend to work locally, so not able to recommend any particular provider. But check detail of competence and quality of report before engaging. Regards, Allan

Guest Avatar
Pac 17th July, 2019 @ 13:37

Great article. Would appreciate some clarification regarding “Ensure the main water source outlet pipe reaches above 50 degrees.”.

I have a relatively new Vaillant combi boiler, no storage tanks. Does this check still apply?

When I put my digital thermometer on the hot water pipe which comes out the boiler, it only reached 36C, however the temperature reading on the boilers digital display reads 57C? Also, I did the water temperature outlet checks and those are all fine at 56-57C.

Guest Avatar
Allan 18th July, 2019 @ 09:09

Hi Pac - readings on boiler gauges not always accurate, which is why measurement at tap outlets is the critical measurement. With a combi boiler an outlet temperature around 50 degC is fine. Allan

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Jack 26th November, 2019 @ 11:54

What are your thoughts on who should carry out the on going monitoring - is it enough to supply the tenant with a welcome pack outlining the risks and recommended actions/frequency of actions? Or is the landlord responsible to carry out the testing and if so at what frequency?

Guest Avatar
Allan 26th November, 2019 @ 21:12

Hi Jack - perhaps both. The tenant should be provided with guidance on the risks and actions should a concern arise and the landlord should carry out periodic reviews. This period is not defined by HSE and general guidance in some quarters is typically every two years or change of tenancy. Depending on the type of system (vented or unvented), some assessors advise a "fresh" risk assessment every 5/10 years. This is dependent on how through and detailed is the assessment survey and report. A good approach is for the assessment report to be prepared by a "professional", but the periodic reviews by the landlord (as less competency required). For clarity there is no requirement for water sample testing.

















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