Log gasification boiler location?

jonny-b-

Hi everyone, i was wondering is it possible to have a log gasification boiler located in the utility room of a house or is there a reason why most people run them from a garage/workshop with the accumulator tank there?

I was wondering would it save the expense of having two tanks and a pipe run to the shed to locate it in the utility?

RVR

Hi Johnny,

There's no problem with this. The reason most people put them in a garage/shed is for space considerations.

Boiler + Buffer + Stack of wood next to boiler (wood can be brought indoors a few days before burning, to help dry a little extra) = a lot of space required!!!

If your garage/shed/etc is close to the house you could use district heating pipe which would be great for minimizing heat loss, although it can be a little expensive.

You would probably save some money putting it inside but it would take up a lot of living space...

Cheers

Des

kevymoss

I find some people would rather have it outside for the same reasons as above and also sometimes when you open the boiler to refill, a plume of smoke can blast out at you!

jonny-b-

Cheers for the replys, i was mainly concerned with the issue of smoke as kevymoss said.

As im currently at the planning process I'm trying to get everything sorted before getting full planning.

I was toying with 2 ideas,

(1) 25kw log boiler in the shed with 1000l accumulator tank, connected to a 500 litre comination tank in the utility, which has a 17kw inset stove and 6 sq mt of solar connected also.

Or

(2) 25kw log boiler in the utility, connected to a 1500 litre accumulator tank with the 6 sq mt of solar and 17kw inset stove connected also.

reilig

A small piece of advice - you are putting in a log gasifying boiler for its efficiency - it is much more efficient than a stove for heating water. Why not save money by putting in a room heating stove and using your boiler to heat the whole house. It will save you money on the purchase of the stove and in fuel consumption in the long run.

I installed a very small room heating stove in my new build. I have a 25kw log gasification boiler with 1500l buffer tank. I find it heats the house perfectly. The small stove has a very small fire box and uses very little fuel. I have always had a range in my house, so I have also installed a stanley errigal range in my kitchen for cooking. It also has a domestic water heating boiler which is connected to the hot water tank. I have a triple coil hot water cylinder in case I decide to install solar - but so far I haven't ventured that far.

Plumber made a district heating pipe from lengths of 4 inch ducting filled with expanding foam. Internal pipes are also insulated with armaflex. It works good so far ( loses no temperature on the flow between the garage and the house) and cost €300 in total. The manufactured district heating pipe was going to cost me €2000.

jonny-b- wrote: »

Cheers for the replys, i was mainly concerned with the issue of smoke as kevymoss said.
As im currently at the planning process I'm trying to get everything sorted before getting full planning.

I was toying with 2 ideas,

(1) 25kw log boiler in the shed with 1000l accumulator tank, connected to a 500 litre comination tank in the utility, which has a 17kw inset stove and 6 sq mt of solar connected also.

Or

(2) 25kw log boiler in the utility, connected to a 1500 litre accumulator tank with the 6 sq mt of solar and 17kw inset stove connected also.

jonny-b-

How much space do i need in my garage for a 25kw boiler and 1500l accumulator tank and all associated plumbing, as well as say 2 cubic metres of logs?

MicktheMan

reilig wrote: »

Plumber made a district heating pipe from lengths of 4 inch ducting filled with expanding foam. Internal pipes are also insulated with armaflex. It works good so far ( loses no temperature on the flow between the garage and the house) and cost €300 in total. The manufactured district heating pipe was going to cost me €2000.

Very interesting. How did your plumber ensure that the flow/return pipes kept their spacing along the pipe length?

reilig

MicktheMan wrote: »

Very interesting. How did your plumber ensure that the flow/return pipes kept their spacing along the pipe length?

He didn't - well he didn't need to. We slid separate armaflex onto both the flow and return pipes. The 2 pipes were then a snug fit in a 4 inch duct which had holes drilled in it to allow us to pump in expandable foam. So a definite answer to your question would be that the flow and return pipes were kept with the correct spacing with the armaflex.

reilig

jonny-b- wrote: »

How much space do i need in my garage for a 25kw boiler and 1500l accumulator tank and all associated plumbing, as well as say 2 cubic metres of logs?

An estimation of the size that my boiler takes up is about 10 foot long by 6 foot wide. My 1500l tank is 10ft tall so I had to take out some of the joists to get it in. Don't know how much space the wood will take up.

MicktheMan

reilig wrote: »

He didn't - well he didn't need to. We slid separate armaflex onto both the flow and return pipes. The 2 pipes were then a snug fit in a 4 inch duct which had holes drilled in it to allow us to pump in expandable foam. So a definite answer to your question would be that the flow and return pipes were kept with the correct spacing with the armaflex.

One further question. How were the holes used for pumping in the expandable foam in the 4" pipe sealed against the ingress of water (I'm assuming the pipe work is buried)?
The reason I'm asking is that I come across this problem all the time where the boiler house is located away from the house and inadequate insulation of the flow and return result is very significant heat loss outside.

reilig

MicktheMan wrote: »

One further question. How were the holes used for pumping in the expandable foam in the 4" pipe sealed against the ingress of water (I'm assuming the pipe work is buried)?
The reason I'm asking is that I come across this problem all the time where the boiler house is located away from the house and inadequate insulation of the flow and return result is very significant heat loss outside.

Hi Mick,

The holes were plugged in the ducting after they were filled with the foam. So the water does not get into the ducting. I have a temp gauge on the mixing valve on the flow pipe into the pipe so that I can set the correct temp of water entering the house. I have measured the temp of the water when it arrives in the house through the underground pipes, and it loses no temperature. I'm very pleased with the way it has worked out.

woodlover

reilig wrote: »

Hi Mick,

The holes were plugged in the ducting after they were filled with the foam. So the water does not get into the ducting. I have a temp gauge on the mixing valve on the flow pipe into the pipe so that I can set the correct temp of water entering the house. I have measured the temp of the water when it arrives in the house through the underground pipes, and it loses no temperature. I'm very pleased with the way it has worked out.

Hi Rellig,
How far is the boiler from the house,