Yes, that's what I was thinking might be behind the logic. It's a hefty external boiler with a water capacity of 19 litres, so it takes a good few minutes to get the flow temperature high enough to have any effect. Heat must also be wasted during the boiler cool-down....
Thanks again for the...
Hi Tony,
Isn't it more like 15kWh? Plus, I may have been a bit 'over-generous', and the half-hour is a maximum (after a lot of hot water usage).
The cylinder's nominal heat loss is 1.45kWh per day.
Many thanks for the replies, guys.
Yes, the hot water 'advice' was on a motoring forum - and did sound a bit 'sus'(n)
I'm actually quite warming(!) to the oil boiler - it's reassuringly low-tech which suits my somewhat Luddite tendencies:D
Hi Chaps,
I have a couple of questions regarding our oil boiler installation - a Grant Vortex Pro 15/26, serving an unvented cylinder.
1) I've read on another (non-plumbing!) forum that it's inefficient to use the boiler solely for hot water heating during the summer months, when the CH is...
Thanks for the replies, chaps.
The house is old and is 'long and thin', the loo being right at one end. There's an outside tap on one of the external walls (hence the easy cold feed!), but the nearest DHW availability is some distance away through some very solid walls:mad:
The day after buying our 'new' house a couple of years ago, it became clear why there was no hot water from the 'H' tap in the downstairs loo. Both taps had in fact been connected to a single cold supply pipe:LOL:
It's not really bothered us, TBH, and I can see why the house layout might have...
As title, really - are those reflective foils worth installing, or are the 'real world' benefits minimal?
Our house is old, with solid 9" brick walls (and no internal or external wall insulation).
Cheers