Combine heat loss estimate and IR inspection
I have had a couple of heat loss surveys done which vastly vary on my heat loss in one particular room of my house, and therefore on the additional rads required to heat the room... However, I'm extremely limited on wall space in the room. It currently has two vertical designer rads, which are very expensive to upgrade if I can't find wall space for a horizontal... This expense puts a heat pump ever so slightly out of my price range, but the boiler is on its last legs!
So, I was wondering if I could combine something like heat punk or magicplan (a LIDAR app and engineer told me they were using) with images or information from a thermal camera (I have borrowed a FLIR edge one).
The two vertical rads are 1800*440, I don't know the exact manufacturer but I can find plenty of flat 6 panel double rads with approx dimensions and they're all about 1500 W at dt50.
My 2005 condensing combi boiler runs at approx 55 degrees C and the room stat is set to 18.4. I can just get the room to 19.5 if empty and I leave the thermostat on max. If there's two or three of us in the room we can get to 20.2.
Boiler temp is measured with the IR camera and an IR thermometer on the rads and pipework.
The room is approx 43m2, 22 of that is new 2018 extension with a sloped roof. I have drawings for that so I know the floor and roof have 100 mm insulation. known U values of 0.22 floor, 0.21 for the external wall, 0.15 for the sloped roof.
Any help is much appreciated! Thanks in advance
I'm in a similar situation with a couple of large vertical designer rads (1560W @ ΔT50) in a recently refurbished kitchen/diner. For a 40°C flow temperature - i.e. around ΔT20 - the radiator output will be around a quarter of that at ΔT50. I've turned my (oversized) boiler down as low as it will go and been heating my home like this for over a year. All rooms have remained at over 20°C, even during the recent cold weather.
In reality, I suspect that there isn't a problem. My kitchen diner has SE-facing windows and bifold doors so there will be some solar gain. There will also be heat transfer from adjacent rooms and the central heating pipes above the ceiling for the rooms above. The room gains heat from the dishwasher, washing machine, dryer, oven, microwave, fridge, freezer, wine fridge and hot-tap. I note from my gas meter readings over several years that for 360 days of the year my energy requirement for heating is, at most, 80% of the peak in the remaining five days. I'm prepared to wear another layer for 5 days a year if necessary. At a push, I do have space for an additional fan coil unit, but I will be discussing the above with my system designer to see what he thinks.
- 26 Forums
- 2,153 Topics
- 47.3 K Posts
- 93 Online
- 5,673 Members
Podcast Picks
Latest Posts
-
@drei I was very sorry to read this heartbreaking story...
By GrahamF , 4 minutes ago
-
RE: Midea ASHP – how to set weather compensation
@jamespa how do you get from usage of 30MWh to loss bet...
By pash44pump , 14 minutes ago
-
RE: Boiling Mad: Exposing Radiatorgate
Actually they do. My case is a prime example. Catalo...
By DREI , 9 hours ago
-
RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
Blunt answer? The 20-year-old gas system was f...
By DREI , 10 hours ago
-
RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
You can even go as low as 40c flow temp, if you want a ...
By DREI , 10 hours ago
-
RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
As someone who has suffered from a Heat Pump installati...
By DREI , 10 hours ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
1040kw Even beat June and July. Great month.
By Andris , 12 hours ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Hope they know what they're doing regarding paint types...
By PatrickVito , 12 hours ago
-
RE: What crazy nonsense are inverter limits and why are they imposed?
I’ve also got a dual fuel Rangemaster. We originally ha...
By Majordennisbloodnok , 15 hours ago
-
RE: Octopus tariffs - a quick comparison
@tim441 I’d agree wholeheartedly with that, with 2 x Po...
By Toodles , 16 hours ago
-
RE: Electricity price predictions
@bontwoody Maybe one for @editor to consider whether a ...
By ChandyKris , 22 hours ago
-
RE: is a home battery without an EV worth it?
You would think, but when I had my Powerwall 3 installe...
By Old_Scientist , 22 hours ago
-
@mars That response surely deserves a nomination for Tu...
By JamesPa , 1 day ago
-
Specifying batteries, pv solar etc using ChatGPT
I thought I'd try to use ChatGPT to specify my requirem...
By Tim441 , 2 days ago
-
RE: Ecodan & MelCloud scheduling
When I interviewed Mitsubishi Electric at Installer ear...
By Mars , 2 days ago
-
RE: Rodents! A word of warning for heat pump owners
@lucia One look at that protection and the rodents will...
By Toodles , 2 days ago
-
What is the Heat Geek Guarantee?
We regularly hear from homeowners who are researching i...
By Mars , 3 days ago
-
RE: Help me keep the faith with my air source heat pump installation
@adamk, interesting point. I’ve not focused much on Hea...
By Mars , 2 days ago
-
Intelligent Octopus Flux (IOF) Review
I promised @toodles that I would provide an update and ...
By Old_Scientist , 3 days ago