wood stove back boiler/gas boiler

[spycatcher]

hi guys, I have a central heating system run of a wood burning stove with a back boiler, it works great but can take a couple of hours to heat up. at certain times it would be great to just switch on a gas boiler to heat things up instantly, is it possible to incorporate both, cheers

 

[SimonG]

Anything is possible if you want to chuck enough ££££££ at it. A lot more complicated than two t's and two bits of pipe though.

 

[Ermintrude]

Upgrade to a thermal store and a nice log gasification boiler? Top it up with stove?

 

[albatross]

hi guys, I have a central heating system run of a wood burning stove with a back boiler, it works great but can take a couple of hours to heat up. at certain times it would be great to just switch on a gas boiler to heat things up instantly, is it possible to incorporate both, cheers

I fitted exactly this in my house. You need a thermal store and someone who knows about them, gas and solid fuel systems. It won't be cheap but it's a lovely system.

 

[spycatcher]

thanks for the replies

wots a thermal store and just how much are we talking about?

 

[tamz]

Nothing is ever cheap. A thermal store is really just a big (or not so big) hot water tank with a couple of extra fittings on it. Prices depend on size and what is on it but range from a few hundred to a few thousand. You need to size it properly. Google H2 panel too for a different set up.

 

[spycatcher]

aye that h2 panel looks like the kindo thing needed, I take you don't need a thermal store with it

 

[tamz]

No just a suitably sized heat leak rad (one that works on gravity) to keep things under control if the power is cut.

 

[Ermintrude]

U can get a store with equivalent of h2 built in

 

[spycatcher]

I often wondered what would happen if the electricity went off and the pump stopped working, would the back boiler not boil its head off

 

[spycatcher]

hi ermintrude, is there one on the net I could look at

 

[snowhead]

I often wondered what would happen if the electricity went off and the pump stopped working, would the back boiler not boil its head off

Not if the system was designed correctly

The pipesize and run from the boiler should be such that there would be gravity flow to the heat leak radiator or whatever, without the aid of a pump.

Of course if you kept throwing fuel on the fire with no pump running, it's likely that the heat leak will be overcome and unable to loose the heat.

 

[spycatcher]

hi snowhead, thanks for your reply, the house is a bungalow with all radiators on ground level (10), there is a 140ltr hot water tank in the attic directly above the stove but it says on the tank that it should not be used as gravity fed that it needs a pump which is also in the attic beside it, if the electric goes out which it has already done today, but the heat in the fire was really low so it was ok, do you think if I ran the hot water off it would be ok until the heat in the fire died down

 

[Ermintrude]

Errrr sounds a bit dangerous. Pump resists convection currents. My advise would be extinguish fire. But that's me being "safe"

 

[Ermintrude]

Can't find link posted it up befor on similar thread about a month ago. Look on forum ?

 

[Gray0689]

hi snowhead, thanks for your reply, the house is a bungalow with all radiators on ground level (10), there is a 140ltr hot water tank in the attic directly above the stove but it says on the tank that it should not be used as gravity fed that it needs a pump which is also in the attic beside it, if the electric goes out which it has already done today, but the heat in the fire was really low so it was ok, do you think if I ran the hot water off it would be ok until the heat in the fire died down

Who fitted it
It's done wrong and should not be used till it's fixed