Electric heat only boiler installation advice for a charity please

[ShaunCorbs]

Estimated 24kw heat loss going off your room sizes

 

[Mrflibble]

You've come on a public forum and asked advise, you've been given that advise by people from all areas, be it oil like myself and a few others, to mains gas, lpg and electrics. Of course you're going to be given plenty of options because like I said this forum is full with specialist in different areas.
I'm not being nasty in anyway, I'm just saying people gave their opinion based on what you asked.

I understand that, and I appreciate it. But you must also understand that you are not dealing with a moron DIY enthusiast here.
In real life I refurbish properties, commission trades etc. and therefore I do have an idea of what I’m talking about.
I look at everything from all angles, and I’ve already had to discount the use of the oil system after considering all alternatives.
We’ve already taken into account the fact that if in future the landlord decides to meter our electricity supply we may at that point have to then make a decision to change the electric boiler to LPG - in which case the plumbing will already be installed - we may even be given an LPG boiler in a few months. But in the meantime we need a means of providing heating.
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Estimated 24kw heat loss going off your room sizes

Thank you, based on what input? We’re aiming for proving a basic level of minimal background heat throughout most of the building.

 

[ShaunCorbs]

I understand that, and I appreciate it. But you must also understand that you are not dealing with a moron DIY enthusiast here.
In real life I refurbish properties, commission trades etc. and therefore I do have an idea of what I’m talking about.
I look at everything from all angles, and I’ve already had to discount the use of the oil system after considering all alternatives.
We’ve already taken into account the fact that if in future the landlord decides to meter our electricity supply we may at that point have to then make a decision to change the electric boiler to LPG - in which case the plumbing will already be installed - we may even be given an LPG boiler in a few months. But in the meantime we need a means of providing heating.
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Thank you, based on what input? We’re aiming for proving a basic level of minimal background heat throughout most of the building.

heatloss calc of the building

34m long by 8m wide by 4m tall
50mm insulated roof
Concrete floor
Wall block and brick

at 18dc when outside is -10

 

[Mrflibble]

heatloss calc of the building

34m long by 8m wide by 4m tall
50mm insulated roof
Concrete floor
Wall block and brick

at 18dc when outside is -10

So will a 12KW boiler be sufficient?

 

[ShaunCorbs]

So will a 12KW boiler be sufficient?

no would need two at the min
so min 100 amps just for them

 

[SimonG]

Mr fibble, to be honest, if you new what you were doing you wouldn't be on here.

People trying to help and you get arsey.

 

[Mrflibble]

no would need two at the min
so min 100 amps just for them

Are you basing that on heating to domestic comfort levels? We don’t require that sort of temperature to be maintained.

 

[ShaunCorbs]

Are you basing that on heating to domestic comfort levels? We don’t require that sort of temperature to be maintained.

room temp of 18dc at -10dc outside

 

[Mrflibble]

no would need two at the min
so min 100 amps just for them

I’m struggling with that calculation, on the basis that a 12KW boiler is sufficient to heat a 3 bedroom house in real world tests?
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Here’s the old oil burning plant. Does anyone fancy recommissioning it? We will also need a tank if it’s to run on oil.

 

[Brambles]

Mr Flibble,

If you are looking for a low level of heat what about an air source heat pump either air to water or air to water to warm air.

I appreciate that the costing side may look high at first glance - but there is quite an extensive array of grants and Govt. funded support available to at least look at the feasibility of a scheme.

Lowcarbondorset advise Charities on the support available for such ideas. They only cover Dorset, but could probably direct you to a sister organisation that covers your area. They very knowledgeable of both the funding available and how to capture it.

We recently installed a secondhand 13KW ASHP, driving a ducted air system for a charity in Kings Langley. The design was to heat an archive of training records to 15 degrees.

 

[ShaunCorbs]

you should be able to get a lpg air handling unit and fit it into the existing system best contact a hvac company

 

[Mrflibble]

you should be able to get a lpg air handling unit and fit it into the existing system best contact a hvac company

I doubt any of them will be interested in dealing with us, they weren’t particularly keen when we were previously in a different building with HVAC.
Unless anyone has any recommendations?
We are located between Cambridge and the A1M.
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Garbutt Heaters Ltd unfortunately appears to be defunct.

 

[SJB060685]

That looks like an old Nu Way Selectos burner, don't see many of them about now. Unfortunately, although I have a good understanding of commercial and industrial oil burners I don't have the experience with them I would like. If you're going to go down that route I suggest looking for a guy or firm that have experience with these older units, you're nowhere near me so I cant recommend anyone but there will be some out there that have the knowledge you need.

 

[Mrflibble]

That looks like an old Nu Way Selectos burner, don't see many of them about now. Unfortunately, although I have a good understanding of commercial and industrial oil burners I don't have the experience with them I would like. If you're going to go down that route I suggest looking for a guy or firm that have experience with these older units, you're nowhere near me so I cant recommend anyone but there will be some out there that have the knowledge you need.

Thank you but we’re not intending to recommission the oil burner. Based on what’s missing combined with the safety and insurance aspects, it’s not viable.

The question is as @ShaunCorbs states above, if that burner unit can be replaced with one which heats indirectly by LPG?
I fear that in the time we have left to make the building usable, this will be difficult or impossible to accomplish.

 

[SJB060685]

Thank you but we’re not intending to recommission the oil burner. Based on what’s missing combined with the safety and insurance aspects, it’s not viable.

The question is as @ShaunCorbs states above, if that burner unit can be replaced with one which heats indirectly by LPG?
I fear that in the time we have left to make the building usable, this will be difficult or impossible to accomplish.

Honestly I wouldn't know. It is as you say an indirect warm air heater, clearly you know the difference between direct and indirect but I couldn't say whether an LPG conversion is possible.
You are however in a perfect position to make a fresh start, whichever route you choose to take.
Again just to illiterate you're asking on a forum with many specialist, you will always get multiple suggestions.
ShaunCorbs has done the math for you, which takes time, so you know what the KW required is to heat this space and the required KW input is.
Whatever the route you take this will be a nice install, I do however suggest you search for the right firm whatever route you take.

 

[Mrflibble]

Can anyone who has fitted an electric boiler tell me if they fitted a system filter?
They don’t seem to be specified by manufacturer. Thanks.

 

[Murdoch]

Because at this time the landlord has not installed a meter.

They will once they realise you have installed an electric boiler