back boiler multi fuel stoves

new to stoves

We have recently installed a stove with a back boiler that runs our central heating and hot water. We are currenlty using the top flue exit. Would it heat water more efficiently/quicker if we used the rear exit flue as this would mean the heat escapes through the boiler???????????

Macha

Something tells me you'll get a better response here - moved.

new to stoves

thanks v much

caesarthechimp

No, rear is for when the fireplace ope is too small to position the stove under the chimney, so a bend is needed.

Jim Martin

Mine's got rear exit but that is because it had to have access to a soot box for cleaning the flue from below. But surely it makes sense that if the exhausted heat is impeded (by a slower exit through the rear), then the water will be heated more efficiently?

Mr Gumby

Top flue exit is recommended where possible, less chance of smoking etc, if you think slowing the combution gases will give off more heat then you need a flue damper.This site has a good description(I have no connection to company)http://www.navitron.org.uk/page.php?id=116&catId=85
You have to be very careful with flues and combustion gases(you have probably heard recent news relating to carbon monoxide)
No matter what you do a lot of heat will escape up the chimney(it needs to for keeping the chimney clean), an efficient, safe stove is most important, next is efficient burning, correct fuel burnt at correct temperature.
There are many variables, efficient running of a stove is somewhat of an art, you will learn the foibles of your particular stove with time.
Stoves with back boilers are always more difficult than without, the back boiler can extract too much heat from the fire and cause it to burn inefficiently, its important to get the water temp high as quickly as possible and maintain it at high temp(50c min I think is recommended)too cold water returning to the boiler, over-cooling the boiler and fire, will cause excess soot build up and increase the risk of chimney fires.
It's a art, as I have found out over many years of stove ownership, there is a lot of info out there (Link--http://en.wikipedia.org/wiki/Stove)
Hope this answers some of your questions.

new to stoves

thank you all for your help.