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Hi everyone
I'd appreciate any suggestions with a heating solution I'm looking for. I have had 3 engineers come round for an opinion and quote and they all have different ideas.
I am sure this heating system can be simplified, and be built cheaper - all the quotes are about £6-7,000.
Application:
What needs heating is an outbuilding we have - basically a ground floor garage & workshop and first floor bedsit flat.
We have no gas or oil, just electric at the property and the outbuilding has a 32A supply.
Each floor is about 50 sqm, and the ground floor has UFH pipework, which I would like to make use of.
The first floor is an infrequently used bedsit (being rented out through AirBNB). I have already made a decision on the first floor, having an inverter type air conditioner to provide heat on demand.
I must thank this forum for suggesting this idea, I think it will work well to heat a well insulated little flat, as needed.
The ground floor is what I need help with.
The aim here is to keep the ground floor from freezing or being too cold - ideally no less than 10-15C. This is a garage and a workshop, and it is also rented out together with the flat above - as a specialist rental for motoring enthusiasts.
The guests tend to want to work on their cars late at night etc and don't want a freezing cold space to work in.
The ground floor has a WC / shower room too.
As I mentioned, there is already UFH pipework. I would like to heat the space with the UFH.
Just to get the ball rolling I have put together a basic design below.
Using two cylinders, both using immersion heaters only.
One is for hot water needs, eg the shower and taps, and the other is a closed system running at a lower temperature, just for the UFH.
Note: I haven't shown the associated valves, pressure reducers, expansion tanks, pumps etc, and this design is using direct & unvented cylinders.
Why do it this way?
Heating for both cylinder 1 and cylinder 2 only takes place at night, at the lower electric tariff.
Heating a full tank for hot water needs the night before it is needed, and circulating warm UFH during the night only.
Thermostats and programmers can be used to turn everything on and off. For the most part the hot water will be used when the annexe is rented out, and the UFH will kick in every every evening regardless.
There's no need for a traditional boiler, no complex maintenance, no need for gas / oil storage.
Disclaimer:
I am not a heating engineer (nooo, really!?).
lol, I'm going out on a limb here, and I fully appreciate that this design can be shot to pieces by you guys.
But -- I do want to build something that works for me, and so, any help and ideas will be appreciated!
thanks very much
Pete
I'd appreciate any suggestions with a heating solution I'm looking for. I have had 3 engineers come round for an opinion and quote and they all have different ideas.
I am sure this heating system can be simplified, and be built cheaper - all the quotes are about £6-7,000.
Application:
What needs heating is an outbuilding we have - basically a ground floor garage & workshop and first floor bedsit flat.
We have no gas or oil, just electric at the property and the outbuilding has a 32A supply.
Each floor is about 50 sqm, and the ground floor has UFH pipework, which I would like to make use of.
The first floor is an infrequently used bedsit (being rented out through AirBNB). I have already made a decision on the first floor, having an inverter type air conditioner to provide heat on demand.
I must thank this forum for suggesting this idea, I think it will work well to heat a well insulated little flat, as needed.
The ground floor is what I need help with.
The aim here is to keep the ground floor from freezing or being too cold - ideally no less than 10-15C. This is a garage and a workshop, and it is also rented out together with the flat above - as a specialist rental for motoring enthusiasts.
The guests tend to want to work on their cars late at night etc and don't want a freezing cold space to work in.
The ground floor has a WC / shower room too.
As I mentioned, there is already UFH pipework. I would like to heat the space with the UFH.
Just to get the ball rolling I have put together a basic design below.
Using two cylinders, both using immersion heaters only.
One is for hot water needs, eg the shower and taps, and the other is a closed system running at a lower temperature, just for the UFH.
Note: I haven't shown the associated valves, pressure reducers, expansion tanks, pumps etc, and this design is using direct & unvented cylinders.
Why do it this way?
Heating for both cylinder 1 and cylinder 2 only takes place at night, at the lower electric tariff.
Heating a full tank for hot water needs the night before it is needed, and circulating warm UFH during the night only.
Thermostats and programmers can be used to turn everything on and off. For the most part the hot water will be used when the annexe is rented out, and the UFH will kick in every every evening regardless.
There's no need for a traditional boiler, no complex maintenance, no need for gas / oil storage.
Disclaimer:
I am not a heating engineer (nooo, really!?).
lol, I'm going out on a limb here, and I fully appreciate that this design can be shot to pieces by you guys.
But -- I do want to build something that works for me, and so, any help and ideas will be appreciated!
thanks very much
Pete
