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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. P

    Thermal storage tank, isolating hot water to tap

    Hi I need to re-route the pipe to the hot water tap on a bath, so I need to isolate the supply, however it is fed from a thermal stoarge tank which I am unfamiliar with. Do I simply turn the cold off at the mains and drain off water from a tap on the hot water system? Many thanks!
  2. A

    Gledhill SysteMate III Thermal Store DHW issue

    Went to the above today, it's a thermal store cylinder. The pump ran on DHW demand, but there was a short bit of hot water, then just cold. The plate on the front felt quite hot, the pump ran and everything was pointing at the plate being the issue. However, I rang Gledhill technical...
  3. M

    Joule Thermal Stores

    Can anyone recommend a good quality Thermal Store, if there is such a thing! I've had a look at Joule Thermal Stores, and would be interested to hear any comments or experiences with them. I would always recommend an unvented cylinder over a Thermal Store, but when there's absolutely no where...
  4. R

    Thermal Imaging Camera

    Has anyone on here any experience of using one of these ? look a handy , tho expensive , piece of kit ?
  5. A

    bio mass boiler

    hi I have a fairly large biomass boiler fitted outside my property, make unknown? its to heat two houses, its piped direct to an open vented system in the main house and to a small thermal store in the cottage. I think it needs to be changed to one main thermal store and coiled to keep...
  6. M

    non setting thermal resistant compound

    Hi just a quick easy question. Wall mounted meter box the gas pipe travels through the cavity via the spigot. This should be sealed. My question is whats the make of that compound iv tried laco rocol I cant for the life of me remember the name of it. Many thanks
  7. M

    thermal resistant non setting compound

    Hi just a quick easy question. Wall mounted meter box the gas pipe travels through the cavity via the spigot. This should be sealed. My question is whats the make of that compound iv tried laco rocol I cant for the life of me remember the name of it. Many thanks
  8. R

    New oil boiler system required - Advice needed please

    Hi, I'm in need of some advice regarding the fitting of a new boiler. I'm no expert so i'll apologise in advance if I get the terminology and/or descriptions wrong, and also sorry for such a lengthy post. We're on oil, and currently have an aging conventional Boulter boiler which is pretty...
    • rich_mat_rix
    • Thread
    • advice boiler needed oil oil boiler please required store system thermal water
    • Replies: 14
    • Forum: Plumbing Jobs | The Job-board
  9. J

    indirect cylinders versus thermal store efficiency query

    Hi, New to the forum, experienced DIYer, looking for some advise. I am currently exploring upgrading our back boiler unit to an Aquatherm 34KW log stove and am unsure about which type of cylinder would be best for our situation. The cylinder now is vented and gravity fed with two coils, one for...
    • johnnymc
    • Thread
    • cylinder cylinders efficiency indirect query solar store system thermal thermal store water
    • Replies: 43
    • Forum: Plumbing Jobs | The Job-board
  10. A

    thermal store

    Does anyone make a thermal store that is designed to be used with just a boiler (no solar, heat pump etc) on a sealed heating system? can't seem to find one
  11. F

    Looking for gas safe/pressurised system, solar thermal plumber Lincoln, Lincolnshire

    Hi, I'm a billy basic plumber and I am upgrading my house (only moved here a year ago). It is a small 1980's detached house with twin tanks in the loft open vented system. boiler on outside wall in kitchen and immersion in airing cupboard on first floor. I'm hitting a wall with what I wanted to...
    • Funky
    • Thread
    • gas gas engineer gas safe register gsr lincoln looking plumber solar system thermal
    • Replies: 14
    • Forum: Plumbing Jobs | The Job-board
  12. P

    Thermal Store Dripping Overflow

    Hi, We installed a combination, open vented thermal store last year. As the header tank sits on top of the main cylinder the water in the header is really quite hot. I have noticed very slight drips coming from the overflow (more on a cool day) which I think is down to condensation. It’s not...
  13. A

    Thermal store installation LENR

    I’m considering changing my cylinder ahead of a bathroom upgrade. I’d like to use the opportunity to prepare for a future alternative heat source called LENR that can almost completely cover my heating and hot water requirements (and potentially microgeneration as well). This probably isn’t...
    • ajb
    • Thread
    • boiler cylinder installation source still store thermal thermal store water
    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  14. K

    Help please re thermal store cylinder

    Hi I am thinking of doing away with my cylinder and 3 bar pump and replacing it with a mains fed thermal thermal store system. My mains pressure is usually 2 bar (but can fall to 1.5) and my flow is approx 18 litres pm. I live in a 2 shower room apartment, there s usually just the two of us...
    • Klythawk1946
    • Thread
    • cylinder help litres mains please shower store thermal thermal store usually
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  15. cr0ft

    Thermal Store Advice

    Hi all, I am sure someone on here will have more experience of installing these than me (i.e. my no experience can't be hard to beat!). I am about to put a quote together for installing a thermal store in a pub. Ideally the store will need to have 4 coils, one for DHW, one for a gas boiler...
  16. E

    Solar thermal quote

    Looking for a solar thermal quote / install at my house in manchester area thanks any good installers
  17. J

    solar thermal hot water

    Hello to all just need to ask have you got to be city and guilds in solar thermal to fit it???? All can any plumber install it if he knows about them
  18. D

    Solar Thermal plumber required for Weybridge, Surrey

    I have solar thermal system with evacuated tubes which was installed three years ago. It has lost circulation and pressure. I need someone with access to a pump to flush and repressurize the system.
  19. gassafe

    Bi thermal heat exchangers ?

    Bi thermal heat exchangers... I think there called that anyway... The ones in old Worcesters 24i, and combis with no plate heat exchanger & diverter valve. I have to look at one next week. Customer says water flow poor, hot water almost boiling at taps!! Sounds like the heat ex is scaled up...
  20. M

    Thermal imaging cameras

    I may have to look for a leak on a heating system losing pressure every day. No sign of a visible leak anywhere, including prv and condense in case heat exchanger is knackered. All ground floor heating pipework is in concrete flooring, has anyone hired a thermal imaging camera and had any...
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