Morning all!
Excuse the long post. I want to employ a good heating engineer, just wanted to research first....
Scenario-
1960s detached bungalow, I'm having a rear extension and at the same time replacing the entire roof incl large dormers. Will be approx 200sqm of floor space.
Two shower rooms, one bath-room.
Two adults, one baby (not here yet!)
Possible parents/in laws to live-in in time...(gulp)
Whilst the roof is off, it may be possible to remove existing wall
Plates and upgrade any existing wall insulation. New bifold doors and also Windows will be of triple glazing I hope.
No gas, just oil.
I don't know the dynamic flow of the mains yet, neighbours tell me out pressure isn't great....will investigate (appreciate this unknown will limit advice)
I would like in the extension (30msq) and kitchen (22msq) UFH (ideally wet)
A snug lounge of approx 12sqm will have a woodburner for asthetics and cosy-ness.
Current setup was vented conventional system, very dated and old components, so the entire CH is being ripped out. The boiler (which works fine although doubt the efficiency is up to standards!) must be well
Over 20yrs old and worn and rusty inside the cover. It's housed in the garage.
Because of the new layout, I won't have any loft space bar the eave storage along one length of the bungalow. It's possible I will have a pitched roof loft above the garage (connected to property) but planning may object this. If we get this roof, then here is an option for any tanks etc but these won't be of any positive height above the upstairs bathrooms (maybe equal to).
I'm aiming for the most efficient solution, budget is healthy for this element.
My options (that I see) ATM, (would love to hear others ideas though)....
1) replace boiler with like for like. Look at using coffin tanks (possible fit in the ridge space at very top of loft conversion?). Could find space for an airing cupboard(cylinder).May still have inadequate pressure to serve upstairs two bathrooms. Pumps?
2) replace with combi/UV pressurised system. No worries with tanks.
3) AS/GSHP, can't seem to get enough evidence of people with these setups as to whether it's likely to cope with all demands. Maybe with a combi back up?
4) combinations of the above? Would be interested in knowing if with a Heat Pump I could feed it from a PV source primarily, then switch to grid if unavailable? Rear garden faces Due South.
I really like the idea of renewable energy/ more bang for your buck with a HP. What with utility bills always on the up. I'd love to be able to have a solar set up that stores electricity for all day use/or get paid via a feed in tarrif.
Again, sorry for the long post. As you can probably tell, I'm a real Layman with this. and I am happy to pay for the correct engineer, I just worry that I'm going to get a plumber who just wants the easiest solution for himself, rather than my home.
I know I will need to establish the mains dynamic flow too, which may restrict people's advice for now.
Many thanks in advice guys.
Deano
Excuse the long post. I want to employ a good heating engineer, just wanted to research first....
Scenario-
1960s detached bungalow, I'm having a rear extension and at the same time replacing the entire roof incl large dormers. Will be approx 200sqm of floor space.
Two shower rooms, one bath-room.
Two adults, one baby (not here yet!)
Possible parents/in laws to live-in in time...(gulp)
Whilst the roof is off, it may be possible to remove existing wall
Plates and upgrade any existing wall insulation. New bifold doors and also Windows will be of triple glazing I hope.
No gas, just oil.
I don't know the dynamic flow of the mains yet, neighbours tell me out pressure isn't great....will investigate (appreciate this unknown will limit advice)
I would like in the extension (30msq) and kitchen (22msq) UFH (ideally wet)
A snug lounge of approx 12sqm will have a woodburner for asthetics and cosy-ness.
Current setup was vented conventional system, very dated and old components, so the entire CH is being ripped out. The boiler (which works fine although doubt the efficiency is up to standards!) must be well
Over 20yrs old and worn and rusty inside the cover. It's housed in the garage.
Because of the new layout, I won't have any loft space bar the eave storage along one length of the bungalow. It's possible I will have a pitched roof loft above the garage (connected to property) but planning may object this. If we get this roof, then here is an option for any tanks etc but these won't be of any positive height above the upstairs bathrooms (maybe equal to).
I'm aiming for the most efficient solution, budget is healthy for this element.
My options (that I see) ATM, (would love to hear others ideas though)....
1) replace boiler with like for like. Look at using coffin tanks (possible fit in the ridge space at very top of loft conversion?). Could find space for an airing cupboard(cylinder).May still have inadequate pressure to serve upstairs two bathrooms. Pumps?
2) replace with combi/UV pressurised system. No worries with tanks.
3) AS/GSHP, can't seem to get enough evidence of people with these setups as to whether it's likely to cope with all demands. Maybe with a combi back up?
4) combinations of the above? Would be interested in knowing if with a Heat Pump I could feed it from a PV source primarily, then switch to grid if unavailable? Rear garden faces Due South.
I really like the idea of renewable energy/ more bang for your buck with a HP. What with utility bills always on the up. I'd love to be able to have a solar set up that stores electricity for all day use/or get paid via a feed in tarrif.
Again, sorry for the long post. As you can probably tell, I'm a real Layman with this. and I am happy to pay for the correct engineer, I just worry that I'm going to get a plumber who just wants the easiest solution for himself, rather than my home.
I know I will need to establish the mains dynamic flow too, which may restrict people's advice for now.
Many thanks in advice guys.
Deano