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btu
The British thermal unit (BTU or Btu) is a unit of heat; it is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. It is also part of the United States customary units. Heat is now known to be equivalent to energy. The modern SI unit for heat and energy is the joule (J); one BTU equals about 1,055 J (varying within the range 1,054–1,060 J depending on the specific definition; see below).
While units of heat are often supplanted by energy units in scientific work, they are still used in some fields. For example, in the United States the price of natural gas is quoted in dollars per the amount of natural gas that would give 1 million BTUs of heat energy if burned.
I'm looking to put an extra column radiator in my living room and when doing my research found one secondhand on Facebook marketplace that I figured could help me save some money on what can be expensive radiators. Anyway, the advert had a link to the sale page for the radiator...
Hi all
Having some renovations done on ground floor and looking to get rid of / replace some of the older looking boilers on that floor (mainly Double panel, double convector, some double panel single convector.
As well as replacing these I wanted to add a couple radiators too, but have become...
Hey everyone, I’m hoping you’ll be able to help. I’ll try and make it as short as possible so that someone actually reads it, if you need any more details in order to help me just ask.
Long story short:
We bought a new house, built in 1975, new triple glazed windows, old loft insulation 100mm...
Hi all. I'm knocking through my kitchen and dining room and will lose them rad that is currently un domingo room due to repositioning kitchen.
New rooms size will be
L 7.2m
W 3.2m
H 2.35m
New French doors going in to replace dining window (2100 x 1750mm) and bigger kitchen window of 1.95 x...
I'm thinking of replacing an exiting radiator (see photo) with something a bit more exciting. A bit of Googling suggests the existing one is rated at about 5600 BTUs. (It's 1100mm by 500mm, type 22.)
I've used about 10 online BTU calculators to try to get an idea of what's actually needed. Some...
Alright chaps,
I’m a bit embarrassed to actually ask this but need some help with something relatively simple.
I need to figure out the Btu’s required for a large open planned room but it’s a bit different from a ‘normal’ room and I’m so used to using a app to calculate sizes and my minds...
Hi all. I want to replace the rads in my front room and to get the right size I'm trying to calculate the BTUs but I'm having agro calculating so can someone who knows what they're doing help please. The room size is
7.6m long
4.0m wide
2.5m high
window dimensions are 1420mm H x 820mm W...
Hi, I need new rads for a whole flat and been doing the BTU calculations. Only thing I am finding is that the online calculators are coming up with completely different results, e.g. Living Room for First Floor, 6m x 6m double glazed room, 2.5m ceiling - one set of online calculators say about...
Hi Guys
So purchased my 1950ish ex RAF house in 2014 and it has a mix of single or double panel, no convector horrid looking Rads. They also perform crap. Sure they get nice and hot, almost scolding in some cases as I've wound the TRVs wide open as they simply don't heat the whole room very...
Hi,
I am looking to get my radiators swapped out for modern designer radiators so am researching BTU values I'd need to achieve for each of the rooms. I live in a small ex council 2 bed, 2 floored maisonette on the top 2 floors of a 4 floored, mostly brick built block.
I'm struggling to get...
Hello guys, my first post, so go easy on me haha :)
KEY INFO:
ABOUT ME: DIYer who doesn't know much about plumbing
BOILER: Potterton Combi 28 HE, installed 2012
PROPERTY: Ground floor mid-terrace flat approx. 80 sq m / 860 sq ft
TOTAL NUMBER OF NEW RADS: 9
I'm self refurbing a...
Hi all,
I put the same bedroom dimension into mrcentralheating.co.uk/btu-calculator and into homesupply.co.uk/radiator_output_calculator.php and got wildly different values. The former recommended approx twice that of the latter......now I am confused.com.
Room Size 2.5H x 3.25W x 3.963D one...
alig31
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Hi –
There are actually four questions I’m hoping you can help with – shown at the end of the post.
In my living room even with the radiator on full blast pretty much all the time (and scorching to the touch), the room is never what you’d call cosy. It has one radiator at the door (600mm...
aqua_g
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Hi, anyone got any clue on settings for this boiler? I know it's touching 40 years old but apart from being horrendously inefficient, the customer loves it and is reliable.
I turned up and the previous engineer had left no paperwork or nozzles, and today was very sooty and dirty.
I've gone 0.65...
Just joined forum and this is my first post
Had a call last week to look at fitting a new commercial boiler i pulled up to a average sized four bed home to find the owner had done the hard work and fitted the boiler to the wall and said to me can you just pipe it up for me my reply was yes i...
Hi,
Just looking at the instruction manual for my Baxi 100he plus boiler and noticed that the boiler output can be adjusted by removing two 'jumpers' from within the boiler, output goes from 75000btu to 103000btu. The house has 16 radiators in total, what else should be taken into account when...
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