Woodburners

[slim reaper]

This is my understanding of stoves.

 

There seems to be two schools of thought on woodburners. Some aim to conduct the heat as efficiently as possible from inside to out. Normally cast iron and un-lined. The down side to this style is due to the heat being conducted away the firebox temperature is low so a dirtier less efficient burn. Then there are the stoves where the firebox is insulated to raise the firebox temperature for a more efficient burn. The down side to all the insulation that mores heat goes up the chimney. I think the Burley tries to have it cake and eat it. The firebox is insulated to keep the burn hot but the tubes above the flame help extract the heat from the escaping gasses. Personally favour the insulated high temperature designs.

 

I think the % figures given by the manufactures relates to the efficiency of burn for a given amount of fuel but not the actual heat given to the room. The missing energy goes up the chimney.

 

Most modern stove have clean burn technology where a secondary air supply is preheated in ducts at the bottom of the stove and then introduced higher in the stove where it burns off volatile gasses producing more heat.

There is ample non insulated area of stove metal to give out this extra heat before it can be lost up the chimney.

slim

[abercarver]

Just brought a great book to read through, all interesting stuff...just read thread on back boilers too,

 

 

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[Valtra1982]

The set up I have is a Charnwood country 16b stove running 6 radiators and the hot water. We still have an immersion fitted to the hot water tank for use in the the summer when the stove isn't on. Roughly I reckon we use about 10-12 tons of firewood a year to run it. When you buy a stove go for a good brand stay clear of cheaper ones they'll give you no end of trouble.

[wrsni]

Ok . Look at the Burly range . I wanted the bigger one ( 8kw ) coz it had a bigger flame picture but we would be sitting in the garden in our shreddies if I did !

 

We installed one of the 8kw ones in December. Again the 5kw (theoretically) would have been adequate but we decided to put in the 8 in case they weren't all they were cracked up to be but on the other hand the room it was going in has double doors and opens up to the rest of the house if the heat output was too great.

 

Anyway, the double doors were removed within a couple of days of firing it up for the first time and the central heating hasn't been needed since.

 

I think the Burley tries to have it cake and eat it. The firebox is insulated to keep the burn hot but the tubes above the flame help extract the heat from the escaping gasses.

 

I can confirm that they've got their design spot on!