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- Thread starter GQuigley67
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The saga continues...
Spoke to gas safe regarding and they say as far as they are concerned if it's classed as a commercial boiler it's a commercial ticket, so then phoned worcester again (spoke to 3 different ppl there now regarding this) and he's sayin yes as it's classed as domestic under 70kW so he gave me an email address and I'm trying to get this in writing from Worcester.
Gas safe advised me to get it in writing to cover myself, said the manufacturer should make it more clear that it's domestic, and agrend their instructions override gas safe.
Spoke to gas safe regarding and they say as far as they are concerned if it's classed as a commercial boiler it's a commercial ticket, so then phoned worcester again (spoke to 3 different ppl there now regarding this) and he's sayin yes as it's classed as domestic under 70kW so he gave me an email address and I'm trying to get this in writing from Worcester.
Gas safe advised me to get it in writing to cover myself, said the manufacturer should make it more clear that it's domestic, and agrend their instructions override gas safe.
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No way. How confusing is that hey. Still we all know MI's overall. Thanks for keeping us updated and please continue to do so
So, you are allowed to install a 80kw boiler even though your ticket is upto 70kw?
- May 23, 2015
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From Worcester for £240. Not bad. What if you link two, will they charge double
I'll be getting a commercial guy to do gas side of boiler, nothing stopping me doing hydraulic side. I will post the conversation between me and technical when I get the chance. They have confirmed.it will work on a domestic S Plan, just need to find large 2 port valves lol
- May 23, 2015
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About 1 "1/2 at least, i seen some online a while back around £150. just gave an estimate for the job if they accept will do a more detailed surveyou.
F
Fowlersrs
This is correct. There is so much confusion surrounding commercial gas it's untrue. I had a similar question and the following facts apply.
Firstly as long as the boiler is under 70kw ie not a commercial boiler then you can install it, note worcester product you are looking at is a domestic boiler but a large one and is based on commercial design so that's where people can get some confusion. I'm pretty sure also that worcester insist on putting anything above a certain size (I think it's 40kw but don't quote me on it) into a low loss header so as the boiler can keep up with demand.
The next and most crucial part. The definition of commercial gas work is NOT defined by the property type. I see sooooo many people assume this.
It is deemed by the supply size your working on at this property. If the volume of gas installation pipework exceeds 0.35m3 then you must hold commercial acs tickets...
So what I would say to you is when you survey the work you look at the present installation of gas pipework and work out volume. Is it correctly sized for new appliance? If not what size will it have to be and what will the new volume be. If it's getting pretty close to 0.35m3 I wouldn't take the chance.
I got a lot of conflicting info on this but got there in the end. It is definitely down to gas pipework volume and not the property.
Firstly as long as the boiler is under 70kw ie not a commercial boiler then you can install it, note worcester product you are looking at is a domestic boiler but a large one and is based on commercial design so that's where people can get some confusion. I'm pretty sure also that worcester insist on putting anything above a certain size (I think it's 40kw but don't quote me on it) into a low loss header so as the boiler can keep up with demand.
The next and most crucial part. The definition of commercial gas work is NOT defined by the property type. I see sooooo many people assume this.
It is deemed by the supply size your working on at this property. If the volume of gas installation pipework exceeds 0.35m3 then you must hold commercial acs tickets...
So what I would say to you is when you survey the work you look at the present installation of gas pipework and work out volume. Is it correctly sized for new appliance? If not what size will it have to be and what will the new volume be. If it's getting pretty close to 0.35m3 I wouldn't take the chance.
I got a lot of conflicting info on this but got there in the end. It is definitely down to gas pipework volume and not the property.
Firstly as long as the boiler is under 70kw ie not a commercial boiler then you can install it, note worcester product you are looking at is a domestic boiler but a large one and is based on commercial design so that's where people can get some confusion. I'm pretty sure also that worcester insist on putting anything above a certain size (I think it's 40kw but don't quote me on it) into a low loss header so as the boiler can keep up with demand.
The 50 and 65kw one's don't. Only if you use the RC35 control
The 50 and 65kw one's don't. Only if you use the RC35 control
- May 23, 2015
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single boiler upto 70kw or any cascade under 70kw eg 2x 35kw, 3x 20kw etc
Oh I see. I thought you could install as many 35 kw boilers cascade as you like. Glad I never had the chance to mess that one up
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