Separately, a high efficiency condensing gas boiler provides heat to Polytherm underfloor heating pipes downstairs and towel rails upstairs. (passivehouseplus.ie)
The build structure and fabric of the house, combined with gas boilers, meant designers and builders could get away with quite poor work. (passivehouseplus.ie)
Also, bio-mass boilers are becoming increasingly appealing for schools too, especially if the old inefficient gas boiler is coming to the end of its natural life. (educationbusinessuk.net)