He uses it on minimum and can work in -14 c ,he also defies the laws of physics are you a secret alchemist 
Small and perfectly stupid.
Mick.
Yes & no.
I think you'd be marginally quicker.
But it is much much nicer to work with.
The shop where I buy my gas didn't have any bottles this morning so I'm on cold today.
Really don't like it.
I'd say for the tiny amount it costs in reality go for it, it's all tax deduct able anyway.
Did you have to stop work last winter? Winter before? If not, you'll probably be just the same.
If yes, a hot system could pay for itself in a day if you'd lose that day anyway.
But only you are holding your purse strings.
Dazmond-I'm no expert or anything-obviously-but my boiler fires up no matter where either of the dials are placed if the water is flowing over 1/3 on the flow controller...