T
TBServices
So following on from my previous thread, I went to see the shell of this new house and meet the owner. As I'm limited in experience of both new builds and underfloor heating, I would like your advice.
It's a 4 bed dormer bungalow, with 4 bathrooms.
The bloke has had 2 conduits fitted through the house to his utility room, ready for a GSHP, but has decided against it for the time being due to initial outlay costs. His options are oil or LPG for boiler, and he's leaning towards oil. For obvious reasons I would prefer it to be LPG, but I can't push him. Any advice on how I could potentially persuade him? What would you guys choose in your own homes?
So for the heating he wants underfloor heating throughout, up and down, towel rails in bathrooms and a large cylinder. So 4 zones. The bottom floor will have 100mm kingspan, underfloor pipework then screed. What is the best type of screed to use?
As for the upper floors, which method is best for the laying of UFH? Considering its a new build there should really be no limitations. The spec says rock wool insulation (which I've told him is no good and should be kingspan) and the joists are to be 600mm apart.
The other issue with the UFH is he wants to extend the house pretty much as soon as it's finished (planning issues on green belt) to add a large kitchen. The only ways around this I can see, are to either run a channel/conduit all the way through the house that supplies can be threaded through later, or put a manifold for this in the upstairs dormer void, and run the pipes down the wall into the new kitchen when it's built. Is that possible?
What type of underfloor heating and controls would you guys recommend? Manager at plumb said if I want decent service, tech advice and a fast turnaround, he'd go with speedfit.
Other thing I can't make my mind up about is how to supply the down stairs bathrooms. Considering the UFH will take up a lot of room, I was thinking about running all supply pipework round the void in the dormer and dropping down behind the plasterboard. Does this seem more feasible than running it all concrete and taking up UFH space?
Was also considering the use of manifold systems to isolate individual supplies. Undecided about the whole copper/plastic argument. If I did use manifolds there could potentially be a lot of pipe runs with limited fittings required. Could also easily supply basins with 10mm pipe instead of 15 for shorter draw off times and less water usage.
As for drainage, there's a drain in every bathroom directly under the toilet location, sticking through the concrete. Now if I remember correctly from my college days, waste connections should be 200mm below toilet connections. With kingspan and screed I'll only achieve around 100mm if I fit a boss at the lowest possible point. Any advice on how to get round this?
I appreciate there's a lot of questions here, so thanks for reading if you get all the way through it, and thanks in advance for your help.
It's a 4 bed dormer bungalow, with 4 bathrooms.
The bloke has had 2 conduits fitted through the house to his utility room, ready for a GSHP, but has decided against it for the time being due to initial outlay costs. His options are oil or LPG for boiler, and he's leaning towards oil. For obvious reasons I would prefer it to be LPG, but I can't push him. Any advice on how I could potentially persuade him? What would you guys choose in your own homes?
So for the heating he wants underfloor heating throughout, up and down, towel rails in bathrooms and a large cylinder. So 4 zones. The bottom floor will have 100mm kingspan, underfloor pipework then screed. What is the best type of screed to use?
As for the upper floors, which method is best for the laying of UFH? Considering its a new build there should really be no limitations. The spec says rock wool insulation (which I've told him is no good and should be kingspan) and the joists are to be 600mm apart.
The other issue with the UFH is he wants to extend the house pretty much as soon as it's finished (planning issues on green belt) to add a large kitchen. The only ways around this I can see, are to either run a channel/conduit all the way through the house that supplies can be threaded through later, or put a manifold for this in the upstairs dormer void, and run the pipes down the wall into the new kitchen when it's built. Is that possible?
What type of underfloor heating and controls would you guys recommend? Manager at plumb said if I want decent service, tech advice and a fast turnaround, he'd go with speedfit.
Other thing I can't make my mind up about is how to supply the down stairs bathrooms. Considering the UFH will take up a lot of room, I was thinking about running all supply pipework round the void in the dormer and dropping down behind the plasterboard. Does this seem more feasible than running it all concrete and taking up UFH space?
Was also considering the use of manifold systems to isolate individual supplies. Undecided about the whole copper/plastic argument. If I did use manifolds there could potentially be a lot of pipe runs with limited fittings required. Could also easily supply basins with 10mm pipe instead of 15 for shorter draw off times and less water usage.
As for drainage, there's a drain in every bathroom directly under the toilet location, sticking through the concrete. Now if I remember correctly from my college days, waste connections should be 200mm below toilet connections. With kingspan and screed I'll only achieve around 100mm if I fit a boss at the lowest possible point. Any advice on how to get round this?
I appreciate there's a lot of questions here, so thanks for reading if you get all the way through it, and thanks in advance for your help.
