On 5 Jan, 10:08, Jim K wrote:
my point is that if the OP is encouraged to run "24/7" with a *bigger*
stove than your old one, he will have to consider the supply and
disposal of fuel and waste/ashes and associated crap and filth - *more
so* with coal based solid fuels than wood IME.

Jim K

OP here - not intending to run 24/7, or to use coal-based solid fuels.

Hope this helps this branch of the discussion ;-)

Cheers
Richard