Hello all, I am trying to trouble shoot our newly installed heating system, and would appreciate help... The system comprises a back boiler on a wood stove, which feeds two radiators in neighbouring rooms. The problems are... 1) The pipes leaving the stove are barely warm only a little above room temperature, even though a kettle placed on the stove top will become too hot to comfortably touch. 2) The system had a single header tank / expansion tank which is filling continuously from the expansion pipe, running at full speed! I have tried changing the speed of the electric pump (thinking that the pressure must be too high) but even at its slowest setting the expansion pipe runs. How should I proceed with my troubleshooting? Thanks. Ampa

You need to find an installer who understands vented boiler systems, which is no small task in North America. Two suggestions: Esse, the British stovemaker, had US and Canadian dealers for its Ironheart cooker,and presumably trained installers. Tony Pitt is the North American contact: 1-877-740-3773. He may be able to point you to a qualified mechanic.
My second suggestion is to ask this question at hearth.com, in the boiler room forum, and tell them where you live.
I wouldn't fire the stove again until you are sure is properly installed.

Todd, thanks for the reply - I shall certainly inquire at hearth.com to get some opinions over there.

I should have mentioned that I am in the UK - the wood stove is manufactured by KingFire a company who seem to have no homepage, and hence I can find little information about their products.

Any further thoughts, greatly appreciated.

Forget about hearth.com. Everything in the US is pressurized. You need to be here http://www.greenbuildingforum.co.uk/newforum/?CategoryID=22

This link is broken, but the retailer can probably furnish a manual http://www.countryfiresdirect.co.uk/acatalog/User_Guides.html That said, I'd call a professional.