solid fuel . back boiler in attic?

isup

I am looking into installing solid fuel with back boiler. Ive bought a triple coile cylinder as im installing solar at a later stage.
At present the gas boiler is in the attic. Am I right in thinking that the boiler needs to be below the water tank? I know some boilers are different. I had a plumber but he let me down and just need to figure some of this out before I go ahead as ill be doing some of the work myself .the plumber started to lay 3/4" copper pipes to the back bolier and then I read somewhere else that 1" is advised.
Also any other info on installing this would be appreciated. Thanks

Dtp79

isup wrote: »

I am looking into installing solid fuel with back boiler. Ive bought a triple coile cylinder as im installing solar at a later stage.
At present the gas boiler is in the attic. Am I right in thinking that the boiler needs to be below the water tank? I know some boilers are different. I had a plumber but he let me down and just need to figure some of this out before I go ahead as ill be doing some of the work myself .the plumber started to lay 3/4" copper pipes to the back bolier and then I read somewhere else that 1" is advised.
Also any other info on installing this would be appreciated. Thanks

It must be 1" piping from the boiler to the cyclinder. The cyclinder has to be higher than the boiler too. If your gas boiler is in the attic then you must have a sealed system. This is where your troubles start. Depending on your gas boiler, most modern boilers need at least .5 bar water pressure to work. If you convert your system to open vented( for stove ) then you will never achieve this kind of pressure so high in your attic. There are some solid fuel boilers that work in a sealed system but I'm not aware of them, nor would I trust them yet to be honest.

TPM

Dtp79 wrote: »

It must be 1" piping from the boiler to the cyclinder. The cyclinder has to be higher than the boiler too. If your gas boiler is in the attic then you must have a sealed system. This is where your troubles start. Depending on your gas boiler, most modern boilers need at least .5 bar water pressure to work. If you convert your system to open vented( for stove ) then you will never achieve this kind of pressure so high in your attic. There are some solid fuel boilers that work in a sealed system but I'm not aware of them, nor would I trust them yet to be honest.

+1 ^^^^^What he said ^^^^^

isup wrote: »

I am looking into installing solid fuel with back boiler. Ive bought a triple coile cylinder as im installing solar at a later stage.
At present the gas boiler is in the attic. Am I right in thinking that the boiler needs to be below the water tank? I know some boilers are different. I had a plumber but he let me down and just need to figure some of this out before I go ahead as ill be doing some of the work myself .the plumber started to lay 3/4" copper pipes to the back bolier and then I read somewhere else that 1" is advised.
Also any other info on installing this would be appreciated. Thanks

There are a lot of things that are required when installing solid fuel boilers, The need for 1" copper pipe to the cylinder is just one.

Installing solid fuel boilers is not a DIY job, Done wrong it can be dangerous and potentially lethal.

isup

Dtp79 wrote: »

It must be 1" piping from the boiler to the cyclinder. The cyclinder has to be higher than the boiler too. If your gas boiler is in the attic then you must have a sealed system. This is where your troubles start. Depending on your gas boiler, most modern boilers need at least .5 bar water pressure to work. If you convert your system to open vented( for stove ) then you will never achieve this kind of pressure so high in your attic. There are some solid fuel boilers that work in a sealed system but I'm not aware of them, nor would I trust them yet to be honest.

Thanks for that. I will do more research and get a professional in . Just as a matter of interest so I can explain to the plumber. Why is 1" pipe needed? Is it because if the extreme heat and need to be pumped faster?

TPM

isup wrote: »

Thanks for that. I will do more research and get a professional in . Just as a matter of interest so I can explain to the plumber. Why is 1" pipe needed? Is it because if the extreme heat and need to be pumped faster?

It is need for alot of reasons including the fact that its regulation.
TBH if your plumber doesnt know that it needs to be 1" or why he shouldnt be installing solid fuel boilers, This does not mean that he isnt a good plumber but solid fuel is different to oil or gas installations and not all plumbers are familiar with it. but It does mean he should keep away from solid fuel

isup

TPM wrote: »

It is need for alot of reasons including the fact that its regulation.
TBH if your plumber doesnt know that it needs to be 1" or why he shouldnt be installing solid fuel boilers, This does not mean that he isnt a good plumber but solid fuel is different to oil or gas installations and not all plumbers are familiar with it. but It does mean he should keep away from solid fuel

Thats all I needed to know , cheers. I will get someone experienced to have a lool at the job. One other thing, what size pipes would you use to the rads?

Dtp79

isup wrote: »

Thats all I needed to know , cheers. I will get someone experienced to have a lool at the job. One other thing, what size pipes would you use to the rads?

Depending on how many rads you have. Usually 3/4 feed reduced to 1/2 up to the rad. If you've alot of rads it'd be 1" to start with