Radiator Sizing Best Method

[Spanner2k7]

Just doing a little poll.

When it comes to radiator sizing what method do you use?

A. Mears Calculator
B. Long Wriiten Method
C. Experience.
D. Computer Software

Thanks for the replies

 

[Gray0689]

Just doing a little poll.

When it comes to radiator sizing what method do you use?

A. Mears Calculator
B. Long Wriiten Method
C. Experience.
D. Computer Software

Thanks for the replies

Mears calculater
And computer software
Just depends if on road when need to size

 

[SafeGasInstall]

by eye for me

 

[truemanufan]

Where do u get the software from?

 

[Deleted member 7121]

Mears calculator for me

 

[Spanner2k7]

Where do u get the software from?

If you go on heatline website, they have an online version or a pro version which is a CD which they send you, I have just recently received it. This is program I have just got, did have the one from barlo, found it hard to use when working with odd shape rooms.

 

[SimonG]

Quick calculation of cubic feet in room then multiplier to give btu's. My old boss taught me this and there was never a lot of difference between it and longer methods.

 

[diamondgas]

Try this out .... Freebie from Stelrad Stelrad: STARS from Stelrad

 

[truemanufan]

Thanks guys

 

[SafeGasInstall]

Try this out .... Freebie from Stelrad Stelrad: STARS from Stelrad

now i have to start calculating the rads estate of just doing it by eye

 

[diamondgas]

now i have to start calculating the rads estate of just doing it by eye

My eye's aren't as good as they use to be specially when them new rads are in mm not inches! *s*

 

[dontknowitall]

Length x width x height in metres.

Multiply by 0.045 for watts for normal room
Multiply by 0.040 for watts for cold room (large windows, 2+ external walls, poor insulation, 2 doors/through draught)
Multiply by 0.045 for watts for warm room (excellent insulation, small window)

 

[buckley plumb]

which mears calculator there are 2 one for newer houses another for older houses which do people us

ant

 

[leelister6]

Length x width x height (in feet) x 4 for Btu's then go for next rad up!

 

[kay-jay]

stick a 'big un' under the window.

 

[benfisher]

here's another one for you to try, Radcalcs radiator btu sizing site

Ben.

 

[kaysee]

Mears calculator metric domestic.

STARS updated version ie the downloadable on not the old one on CD

kenny :tongue:

 

[Ray Stafford]

thread is nearly 3 years old!

 

[IDCHAPPY]

View attachment 16765

thread is nearly 3 years old!

Nowt like a bit of thread from the dead :lol:

 

[albatross]

40 watts (0.04 kw) per cubic meter.

 

[kay-jay]

You cant go far wrong with the 'stick a big un under t' window' method

 

[stevetheplumber]

im in the 5 btus per cubic foot camp up a bit for living rooms and down a bit for bedrooms the most important rad is the hall never go low on the hall its the first rad the customer feels when he walks in and it will spread round the whole house
the difference in price from one rad to the next size up isnt much so dont try saving money on the rads as it will come back and bite you
ive only ever had a problem with rads size once when i didnt realise the customer was going very open plan and the heat was disapearing up the stairsl uckily there was a couple of singles to double up

 

[Centralheatking]

I tend to work in kw's with a little bit of mears calc help - as above unless
its a big project (then architects/qs etc spec anyway)

We put plenty of heat downstairs cause it only goes up always do 24inch 2x rads downstairs
and smaller ones upstairs. tend to do kick space heaters in kitchens (myson) or underfloor stuff.

Then usually send in Nathan and his mate to add as much insulation in the roof space as it will take sensibly in 2-3 hours - the stuff is dead cheap anyway CHk

 

[Ray Stafford]

im in the 5 btus per cubic foot camp

Phew. I thought I was the last one.

 

[Centralheatking]

Ray Stafford is now offering a free radiator/house/boiler sizing service anywhere down south
of the M4 carried out by himself personally or his assistant Samantha - call into Williams HQ give the post code and choose who you want to come and do the calculation in person

Phew. I thought I was the last one.