100KW gas boiler for domestic install!

[Dannypipe]

LOL! Thanks. Now you see why I need a bigger van.

It's not just my work. The guys I work with are brilliant, and know their stuff inside out.

 

[Deleted member 32524]

LOL 100kw!!

 

[Rob Sale]

he must mean 100'000 btu's

 

[stevetheplumber]

OK, this might not be helpful, but here's some laymans terms

Victorian, converted train station. New boiler (30KW)

View attachment 10687

View attachment 10688
Very large (modern) country house. 70KW (Two, sequenced, low loss header and zoned).

View attachment 10689
Tudor house, large - 45/50 KW (single boiler, zoned)

View attachment 10690Internal, of tudor house, showing the manifold and zones.
View attachment 10691
1970's (ultra modern for the time) house. Two cascaded boilers, on a low loss header. With an additional boiler for the pool. Can't remember sizes, but no where near 100KW. Think about 50KW in total, but split over two boilers and sequenced to reduce wear and tear.

I know these are just photos but it shows you what 100KW's is in laymans terms.

not bad for a monday what you got on tommorrow ?

 

[Dannypipe]

Got a bog to unblock Steve....and no gloves.

 

[bewsh]

100kw is massive, can't imagine you'd need that size! I wouldn't want to go for a combi with that size house mind. Unvented system would do the job!

 

[Howsie]

I know why he said 100kw. How deep is your pool?

 

[leethegasman]

was it this one, Is some one else getting kw and btu mixed up again hopefully they will not get as far as hanging it to the wall.

 

[josh]

haha nice pic, where do people get theese figures from, with a larger house with system boilers i'd watch the expansion vessel, we normally fit heat only boilers for larger properties, that being one of the reasons.
See my pics for examples aswell.

 

[Dannypipe]

Josh, some really, really great work on there. Nice one.

 

[infromthecold]

Right I have been to house and measured the rads. All are Quinn double convector details listed below. Need 34KW to drive the rads so not 100KW. Can anyone recommend a boiler with correct capacity?

Cheers

Rad Size	Power	Number	Total
1800x600	3497	1	3497
1400x600	2720	6	16320
1200x600	2332	3	6996
1100x600	2137	1	2137
1000x600	1943	1	1943
800x600	1554	1	1554
700x600	1360	1	1360
		14	33807

 

[Howsie]

Get your new installer to do that. Bin the current guy.

 

[Rob Sale]

Right I have been to house and measured the rads. All are Quinn double convector details listed below. Need 34KW to drive the rads so not 100KW. Can anyone recommend a boiler with correct capacity?

Cheers

Rad Size	Power	Number	Total
1800x600	3497	1	3497
1400x600	2720	6	16320
1200x600	2332	3	6996
1100x600	2137	1	2137
1000x600	1943	1	1943
800x600	1554	1	1554
700x600	1360	1	1360
		14	33807

Advertise on the section of the forum saying I'm looking for gas engineer/plumber wanted. [DLMURL="http://www.ukplumbersforums.co.uk/im-looking-plumber-gas-engineer/"]http://www.ukplumbersforums.co.uk/im-looking-plumber-gas-engineer/[/DLMURL][/B] and get a decent guy down . bin the current guy.

 

[infromthecold]

I spoke to engineer today to say about 34kw load so why such a large boiler and he said he had a TSM from Worcester attending site tomorrow. I didn't know they had such a service so I called Worcester and they do indeed have such a service. I spoke to technical pre-sales asking for an opinion or insight and they said they couldn't give definite answers without seeing everything.

One thing they did mention is heat loss in the pipe work if the lengths are long.

Can this be so bad that it needs a lot of extra power in the boiler to compensate?

Do all the rads go on one loop?

Any insight or suggestions gratefully appreciated.

Cheers

 

[TBServices]

Just forget this guy ever mentioned 100kw. It's now irrelevant. I think I'd be looking for a new installer tbh.