Heating, Cooling & Insulation
Jul 24, 2019 9:55 pm
Hi, we are building a new house. We shall have gas cooktop and electric (heat pump) hot water system. We shall have bottles.
We decided on heat pump over gas continuous flow after much research. However, we want to future proof our HWS and were wanting to include a gas point / rough ins near the heatpump HWS so in case in future we want to swap over to Gas HWS we are able to do that.
Our builder suggests against it for 2 reasons
a) they can not give me a gas point near to HWS coz of regulations
b) swapping will not be as straight forward as the internal pipes are totally different for a gas based HWS, than what it is for electric. These pipes have to be gas complied etc etc. So according to them if I have to future proof it then they will have to run 2 piping system internally which we both agree is crazy.
However, I am not totally convinced. For the first one, I can have a point somewhere nearby and then it can be extended / adjusted a bit at that time by a tradesperson to bring it to the same position as current HWS and then connected to the internal piping.
And for the 2nd point, why would a different set of water carrying pipes be required!! The HWS just heats the water and then sends to the internal piping network. How does it matter what energy source it is using for heating the water!?
Anyways, I am nowhere an expert in the area, and would be keen to hear views of the members.
So I have 3 questions
1) Is my builder making sense in his objections and what could be the possible solution for that?
2) Can I really retrofit a gas HWS instead of heatpump/electric HWS later? Or is that totally non-feasible thought?
3) As a side, anyone has any views if I should also have a gas point at the alfresco for BBQ? Has it been useful to people who have done it?
Any insights would be greatly helpful.
Re: Gas related questions for a new build - is my builder ri2
Aug 21, 2019 10:56 pm
Your builder is full of crap. Only thing that may change is if they are using poly pipes throughout the house, then they may use copper pipes for tempering valves etc, but they are likely already doing that for the Heat Pump anyway. Sounds like a BS story from builder.
You sure he is not referring to the gas feed in pipes as opposed to the water? There may be differing pressures for gas HWS v the cooker/heater etc
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