i what to heat garage for the winter,
not only is the car in there but i have a home theatre set up above.dont want electical/speakers getting damp.
prob only looking at low level background heating bar when out there.
5 to 10 and 20c when working/watching.

oil boiler but how do i size it

rob

 

My mate's garage, I came through the wall, and fitted a radiator high on the wall.
I could have calculated the losses, but as it was for background heat, just fitted a TRV turned right down.

 

bags ,
it a stand alone garage so will have to fit a boiler seperate.
any ideas from the day gang

rob

 

Cant you channel-in the feed/return pipes underground using the new blue plastic stuff (in 15mm) You can insulate properly, and put some isolators at each end!?

Failing that, I'd fit a tiny Combi, cos you then have hot water, too
Of course, you would need a cold supply for that route. If you have a pitch roof, you could stick a header tank up above, but it will be more work and a bit messy!
That way .. you dont "strictly" need a water supply, cos you can manually refill.

The losses are going to be large .. Is this a Single-skin brickwork construction with steel door? Or wooden? Or Sectional concrete?
Roof is what, exactly?

If the size is ample, I'd think about lining it out!

Al.

 

bags ,

its built almost to house standard(possibly granny flat for father later on)if he ever needs it.
fully lined(insulation on plaster board),wired,plumbed with toilet,alarmed.
cavity block and acid spec floor coating.

on the combi,do you need a header tank as the upstairs has a vaulted roof.
garage doors are steel rollers.


an idea of roof type
rob

 

Reverse cycle inverter driven air condtioner....couple of wall mount...electrically driven and as energy effcient as an oil boiler, plus you'll have cooling in the cinema in summer

If you need a price give us a p.m. I sell Fujitsu and Daikin at a very reasonable rate....

Regards

Ian

 

sibster ,

sounds good but electic normally frightens people with running costs.you got and web links to look at

cheers

 

i got a web link you can look at, www,thehun.com

now get on the phone to ian

 

http://www.daikin.co.uk/default.jsp

I can do you a good deal supply only you would have to find a local refrigeration engineer to fit it or I could send an install team over....inverter technology means its very energy effcient...I have it in my kitchen diner as the primary heat source...sell loads now in the domestic market for conservatories, bedrooms etc...

Have a look at the website cant remember the Fujitsu site but do a search on Google...

Regards

Ian

 

That's OK Ian .. but where would the support be, and how long would it take to fix (let alone the expense) should the need arise? And my experience tells me that this "could" be problematical for this gentleman. This type of system always invariably is. He would, I am sure, want something he can always get a local plumber to look at, or get spares in Cork.

I'm looking at the options for you Rob .. but a small good-quality brand combi would be my choice. You dont strictly need a mains water supply, as you can fill/pressurise the system from a hose, but it would be best, as you can then utilise hot water if you need it. Plumbing work would be less intensive than the electric option, plus there would be no NOISE in your theatre

 

cheers lads ,

thanks for thr good advise.

rob

 

Bags,

Been in a/c for 20 years, Daikin equipment carries a minimum 3 year or 5 year guarentee if installed by a Daikin D1 partner as we are....the modern a/c system is servicable up to 10 - 20 years after install. The cost versus an oil boiler is very compariable, we do both oil and gas wet systems as well....noise wise an a/c system is as quiet as any normal back ground approx 35 dba. The average combi is fine but you try and buy a spare pcb after 5 years it will be cheaper to buy a new boiler...value for money, I think not....i have been in building services as both an engineer and a salesman for many years believe me modern a/c is as cheap, reliable and as effective and has several benefits over a wet system.....as for plumbing being less intensive again i'd disagree, I price up many jobs and A/C install is far easier and a lot less obtrusive thats why so many modern buildings incorporate a/c as the primary heat source...

Don't let me sway you just give a p.m. if you want a price...you will be surpirised....

Happy plumbing

Ian

 

the cheepest way whould be to come off your house heating and put rads in your garage, i whould put them on a new zone so you can easy switch them on and off by room stat and/or time switch. pipes whould need to be 750mm below ground level and well insulated, your boiler you have now should cope ok with this because of the sperate heating zone.
Or you could put in an electric boiler, cost about Ł350 for a 2k up to about Ł550 for 12 kw, you whould need pump and unvented kit aswell which will cost about Ł100 on top, these are very small boilers 550mm H 164mm W 130 D and the biggest one is just longer at 1073mm H quite cheep to run and alot cheeper than an oil boiler, plus cheeper fitting, just depends on electric supply to garage, but if you only want say back ground heat the 6kw whould do ok and whould run 3 1200mm x 600 mm doulde convector radiators if needed.
ok hope i have given you soom ideas cheers dunc

ps iam a plumber / heat eng

 

Dunccoss,

do these elec boiler run water rads like an oil system.would elec not be a lot dearer on runnin costs.garage(car) is background heat but upstairs would need to be house temp when using it.
dont want to come off house,digging/disturbing house is not an option.

rob

 

that depends mate oil has gone up a lot and is going up yet again soon. yes mate it just like your oil boiler but a lot smaller pipe goes in the bottom and out the top, then off round your rads. sounds like you will need a 9 or 12 kw boiler mate but that depends on the amount of rads needed to heat up the areas and to what temp ect. if you give me the size of the room and height also wall thickness and insulation if any i will work it out for you so then you will know whats needed in radiator and boiler size

 

Dunccoss,

garage , downstairs 20x30 .@8 high(three rooms,workshop15x5,toilet5x5,garage 20x25)
upstairs,vaulted ceilin to about 13` and 30x15 .walls all fully insulated with dry line stuff and plastered.cavity block construction.garage doors are steel rollers so heat loss there.windows are double glazed so ok.gap on top of roller doors that i must block some how,heat loss deffinite there.


rob

 

Right then for ground floor at a temp of 15 d
work shop with 2 out side walls needs 3300 btu`s
toilet with 2 out side walls needs 1550 btu`s
garage with 3 out side walls needs 14000 btu`s

upstairs with a temp of 21 d
with the roof and only slight walls befor roof about 23000 btu`s

total heat needed is 41850 btu`s plus pipe work ect so grand total is 45000 btu`s but you will need to sort the caps out around garage door and also stick celotex insulation board to inside garage door to help heat loss in garage

so you are looking for a boiler that has 15kw out put, the biggest electric boiler is 12 kw this whould do it but it whould take longer to heat up but it whould be worth trying to see if its copes ok if not you could allways add a second smaller electric boiler to the system to up the out put, or put in an oil boiler ect.
hope this helps dunc

 

(and a connection to the national grid)

 

Compared to electric heating reverse cycle heat pump is 200 - 250 % effcient....in other words 2 kw of consumed electrical power will give you 4 - 4.5 kw of heat....

The inverter control matches it to the load and warm air gives a faster warm up period...and no connection to the national grid....

I'm going back in my box now...

Regards

Ian

 

lads ,
cheers again for the time and help given above.thats why i like pf,

must now decide what to use ....elec,oil,.......wood burning stove.

rob

 

Yes, Rob .. Happy decision making : )
I'd personally be using some sort of condensing boiler running LPG, cos I have 2 motors running on it .. and I could fill the cars, heat and cook with it all for 24p/L delivered duty paid!

Good luck anyways

Al.

 

Yes...bst of luck Rob...btw your house looks beautiful....i and just love s.ireland...did the blarney stone rally many years ago...really helpful and genuine folk...

Regards

Ian