My house is now very well insulated and reasonably well draftproofed.
(300mm solid masonry + 100mm celotex walls,
400mm fibreglass loft insulation + breathable membrane under slates, double glazing, 4/16/4 sealed units, openers seal well, suspended timber floors, no underfloor insulation, but ground-level vents s heltered by nearby fences)It's noticeable how much more heating is needed on cold and windy days, com pared to very cold but still days (like today).
Now some of that increased heat loss will just be air current across the wh ole structure - but I suspect some of it is drafts.
The two obvious ones are the fresh-air vents for the woodburner and the cen tral heating boiler.
Both are open flue appliances, through masonry chimneys, with stainless ste el liners about 7.5m long - so I don't think much warmth is lost through ea ch flue whilst they're not operating.
The only other two obvious sources of heat loss due to drafts, are the fron t doors (which could seal a little better), and the bathroom vents. The lat ter is a whole-house system with some length to the pipework, so I don't su spect much loss through that either.
So my first question is - where/how to look for remaining heat losses assoc iated with windy weather?
And secondly, anything that can be done to reduce the drafts through the ap pliance fresh-air vents?