Heat my house without Gas or Electric.

[@leewells26aug]

Nice, tidy and effective it seems, that’s a job well done, can u do installations for paying customers?

[@GaryTurnbullHessle]

Hi Did you just use 22mm copper as your heat exchanger?

[@trickydicky6788]

Hi Gary, I used 15mm copper tube for the whole job. People will say the solder will melt, but as long as water is in the pipes the solder won't melt.