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A thermal column (or thermal) is a column of rising air in the lower altitudes of Earth's atmosphere, a form of atmospheric updraft. Thermals are created by the uneven heating of Earth's surface from solar radiation, and are an example of convection, specifically atmospheric convection. The Sun warms the ground, which in turn warms the air directly above it. A thermal is a rising mass of buoyant air, a convective current in the atmosphere, that transfers heat energy vertically.

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  1. CorgiDirect

    Testo 868 - thermal imager with App (Save £100 from RRP)

    VIEW HERE Testo 868 - thermal imager with App (Save £100 from RRP)
  2. siricosm

    Suggestion for a thermal store?

    I am moving house and looking to install a thermal store in the new place. I was thinking of an unvented store around 300l, with a single corrugated stainless coil for DHW. Any suggestions on make/model/supplier?
  3. H

    Question re thermal store

    Sorry if this seems a trivia question , but just watched a programme called the chateaux with dick strawbridge . My question is regarding the fact that he put a thermal store right at the top of the building 4 floors when the boiler was in the basement , what is the logic in this as I thought...
  4. R

    Legislation affecting solar thermal

    Given that solar thermal is an uncontrolled heat source, does one have to have any specific qualification to flush and refill a thermal system if the system is heating an open-vented (gravity) hot water system? For clarification, the primary solar water is a sealed system, but the secondary hot...
  5. S

    Serious and pre-existing leak or thermal store error?

    Now sorted... don’t bother reading this stupid long post. Hi, I’ve got a bit of a head scratcher here and wondered what you guys would make of it. I was called by a landlord to do a gas safety check on a property that is now at the latter stages of being sold and the buyers wanted the usual...
  6. S

    Thermal store - very low hot water pressure. Help/ideas

    Very low (trickle) hot water pressure at outlets. Albion mainsflow indirect cylinder. Help and ideas please!
  7. M

    Thermal imaging camera

    I've got a customer who has a leak. I've checked and double checked all the main culprits but no joy as they have karndean flooring throughout I even tried leak sealer (not a big fan of the stuff myself) Its a wooden floor and all the pipes run under it I was wondering if a thermal imaging...
  8. D

    Gravity and vented thermal store.

    Apologies for the unusual question, as I am an interested DIYer. The question is, why do you need a gravity coil, on a thermal store? Surely, you'd get better flow rate from direct connections to the side, as there would be no friction and you could use 35mm or 42mm copper pipe, to a 2 inch...
  9. A

    Thermal imaging camera

    I'm thinking about getting one, does anyone have one? Only want a cheapish one to start with, see how often I need it and if they are any help when I do. If it's worth it then I will invest in a decent one in the future. I haven't needed one before but it might come in handy one day. Any...
  10. D

    Electric Unvented vs Thermal Store/Vented Cylinder with Small Stove

    Hi, We currently have a traditional hot water cylinder with an immersion and connection to a multi-fuel stove with a 10k BTU (3KW?) boiler. The DHW is provided by the immersion over the summer and the stove over the winter. We've got a bath and 2 electric showers, and (honestly) no heating in...
  11. 999

    Thermal imager- What do you use?

    Anyone use a thermal imager in there job? interested to here whats good given the cost of these units
  12. R

    Thermal Store “Boiler-Pump” query

    Hi, I'm a newbie and need some advice please. My 4 bed house has gas central heating with the Regular boiler (BG 330 set to 18Kw output) located in the garage. The boiler is connected directly to the header tank (vented system) and is also connected via a dedicated system pump to a thermal...
  13. I

    Thermal fuse GW ultracom 2 cxi

    Thermal fuse blown in the above boiler. No part number for it as it Comes complete with the hex. The warranty is 5 months out of date, not sure if gw will entertain this one when I call group service tomorrow. Can anyone suggest anything....a heating company is selling them on eBay and state...
  14. C

    Thermal store for Solar PV and oil - 2 immersions?

    Hi, I'm new here and have arrived on this forum as I have a question on the above. I'm talking to a solar PV supplier about a 4kw system with which will come and Eddi controller which can feed 2 immersion heaters. I'm a bit lost when it comes to the cylinders/thermal stores. We currently have...
  15. S

    So many thermal store questions!

    So the plan is this. Currently I have all rooms individually controllable through programmable TRVs allowing me to heat only the rooms that are being used on different profiles during the day and night. So far so good. But I have three main problems with my boiler. 1. there is no boiler...
  16. plumb_know

    thermal imaging camera ??

    Hi everyone, have a old flir pro one thermal imaging camera but does not fit my new phone. can any one recommend a good thermal imaging camera under £500. As i don't use it too often i don't need a top of the range one but i want one that is adequate to find leaks within walls & ceiling...
  17. O

    Mitsubishi ASHP and Heatbank Xcel Thermal Store

    Hi, We have recently had a quote to fully supply and fit a Mitsubishi Ecodan System in our home...I would have liked to have a wood burner connected to it in order to subsidise the heat production and lower our electricity bills in the winter, however, with this configuration it is not...
  18. M

    Thermal store replacement

    Hello, got to change a PULSARCOIL 2000, anyone have experience of these, what would be a good replacement ? have fitted a TRISTOR MANUAL FILL before to replace a combi cylinder, found it quite straight forward to install, and was impressed with quality and performance. But always ready to take...
  19. S

    Bristol - Connecting NEST thermostat to worcester greenstar / thermal store

    Hi I'm looking for a plumber able to connect the gas boiler to the thermostat, thermal store and valves. Our previous plumber said it was the electricians job & left. The electrician said it was the plumbers. We have all the bits, just not connected. BS6 Bristol. Pm me for my mobile Ta, Stephen.
  20. D

    log burner and gas boiler into thermal store = persistent problem frustrating for me the homeowner

    In 2012 we had a thermal store installed with a log burner and regular gas boiler feeding it. pretty much since then it hasn't worked properly, the original fitter has since retired and a couple of plumbers and an electrician have looked at it but cannot get it to work effectively. The idea...
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    • Thread
    • boiler burner gas gas boiler homeowner oil problem store thermal thermal store
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
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