Hi Brian and Richard I have fitted an overide switch so the pump can be switched from thermostat to constant to prevent the 'boil up' as the fire initially gains heat. (The boiler fittings are small and don't allow the heat to travel the pipe and start the therostat before boil up)
Once the system is hot I switch back to theromstat (set low to avoid boil up) and all is fine. We burn wood rather than coal so when the fire dies down (if we are slack at 'log chucking', go out or go to bed) the pipe seems to get very cool before the thermostat cuts out. Im not bothered by the rads getting a spell of cool water but the calorifier looses a fair bit of heat. What how does the thermostat on a older type car work? Would that stop/allow water along a pipe. The system is on my refit boat so the pipe thermostat is less than a year old and has only been used on and off (ha ha!) this winter. Currently fiddling with the pipe stat settings but its as long job as envolves a full cycle of cold/hot/cold. Would like to have the calorifier only receive the hottest water, without me having to go wardrobe potholing each day! ho hum! Thanks for your suggestions Lee [email protected] Trust the boater but not his plank! visit Low Impact Life Onboard www.lilo.org.uk -----Original Message----- From: Brian Dominic <[email protected]> Sent: 01 February 2009 12:26 To: [email protected] Subject: Re: [canals-list] Plumbing parts and apology [Default] On Sun, 1 Feb 2009 11:46:54 +0000, Kennet Boater <[email protected]> finished their pint and wrote:: >My problem is that when the fire cools down it take ages for pipe thermostat >to turn off. Thus pushing cooler water through the calorifier and taking heat >out. I've over come this by fitting a shut off valve on the calorifier heat >feed. But this means opening and shutting it at either end of the woodburners >'hot time' and the valve is awkward to access. >If I increase the setting on the pipe thermostat the boiler 'boils up' before >the pump kicks in. > Could you not add an ON - OFF switch to the thermostat circuit? Turn it off when you don't want the circulation to take heat out of the calorifier, turn it back on when you start the stove up again. Brian L Dominic Web Sites: Canals: http://www.brianscanalpages.co.uk [The entire original message is not included] [Non-text portions of this message have been removed]
