The total heating BTU of my radiators totals to 62,000 BTU'S.Can i get away with installing a 60,000 BTU boiler as it is also going to run the hot water.. or should i go for the next size up?? (preferably vaillant boilers)Thanks
get the next size. there should be a 20 % additional load factor for your requirement to prevent breakdown of the equipment.
as a vaillant boiler engineer this is the minimum i can recomend 80000 btu's is approximate to 24 kw if you add water to your heat requirement you will need around this. vaillant appliance suitable to you are - ecotec pus 624 (sealed system) i.e no heaer tank in loft but radiators and water cylinder ecotec plus 424 (open vented) as above with header tank in loft and pump outside boiler ecoted pro 24 (combi boiler) ecotec plus 824 (combi with flap) these are minimum requirements an all these modes have higher powered machines
