Hi
Customer has very big house, using whole house sizing method, it requires 44 kW to heat house.
in my view I would like to install 2 open vent 24 kW boilers, the cost is about the same, but the efficiency will be better with only one boiler working on most days and only the 2 when temp drops, ps we are in South England .
also we will have a back up boiler.
i want to design a lead lag wiring system, any ideas?
I was thinking of timing the return pipe to see how long to get to a fixed tem, befor bringing in no.two boiler?
any thoughts?
Regards
peter
Customer has very big house, using whole house sizing method, it requires 44 kW to heat house.
in my view I would like to install 2 open vent 24 kW boilers, the cost is about the same, but the efficiency will be better with only one boiler working on most days and only the 2 when temp drops, ps we are in South England .
also we will have a back up boiler.
i want to design a lead lag wiring system, any ideas?
I was thinking of timing the return pipe to see how long to get to a fixed tem, befor bringing in no.two boiler?
any thoughts?
Regards
peter