On Fri, 10 Feb 2012 22:08:16 +0000, The Natural Philosopher wrote:

but seriously how often have you run the CH from the stove?

Here when ever it's on as it's plumbed into the thermal store.

e.g. what's the oil burner rated at? vs the stove's wet output
figure/
claim?

Our oil burner is 38kW IIRC but has a smaller jet than spec so maybe
only 35kW. The stove spec is 7kW to water.

decent stove will pump about 3KW to 5KW into CH system. Not enough for
this weather, but better than sod all.

See above, when the stove is on the oil boiler doesn't come on
anything like as often (if at all) as it does when the stove isn't
on. The oil burner is oversized now we have better insulation on the
walls and more windows replaced. It used to struggle keeping the
place warm with a bizzard (true meaning of the word) rageing outside.
But remember 7kW nonstop is the same as 35kW for 12mins of the hour.
We are certainly using less oil.

--
Cheers
Dave.