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exchanger

A heat exchanger is a system used to transfer heat between two or more fluids. Heat exchangers are used in both cooling and heating processes. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. They are widely used in space heating, refrigeration, air conditioning, power stations, chemical plants, petrochemical plants, petroleum refineries, natural-gas processing, and sewage treatment. The classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air. Another example is the heat sink, which is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant.

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  1. I

    Plate Heat Exchanger - Correct orientation

    Hi all. Looking for an opinion; on the correct orientation of a plate heat exchanger. I had a discussion in passing about installing a plate heat exchanger on its back so that the connections are face up, standard orientation is that the platte exchanger sits on one end and the connections...
  2. siricosm

    Where to get connectors for plate exchanger

    Anyone know where to get connectors to fit a plate exchanger? It looks to be 3/4 BSPP. Not even sure what the couplers are called, but I imagine something like those that are on water meters (or pumps), with flat rubber gaskets so that the exchanger can be easily removed.
    • siricosm
    • Thread
    • america connectors exchanger plate usa where
    • Replies: 5
    • Forum: USA
  3. E

    Blocked Heat Exchanger?

    The central heating system (Valliant Ecomax 622, 8 large double radiators) had been losing pressure for several months and I'd been topping it up every other day during the cold periods, but it hardly needed it when the heating was off for a while. The radiators had been making 'tinkling' sounds...
  4. R

    Kick board fan assisted heat exchanger ?

    Removing 4ft radiator in kitchen and looking at installing one of those under unit heat exchangers due to having no wall space in new kichen, what size and model to go for.
    • richard3009
    • Thread
    • america board exchanger fan heat heat exchanger usa
    • Replies: 5
    • Forum: USA
  5. D

    Worcester Negative Fan Pressure decrease after cleaning heat exchanger

    Hi, I am new gas safe registered. I serviced a old worcester R28 HE Z7-28 system Boiler. found negative fan pressure -3.95mb lower than MI's -4.2mb, Gas rate is 2.82 m3/h, little bit lower than MI'S 2.9M3/H, so clean heat exchanger very well. after that check fan negative pressure, -3.11mb...
  6. G

    Blocked heat exchanger

    Hi, I have a Baxi Duo Tech Combi 33 boiler fitted to my small bore system in 2010. When the boiler was fitted I suspect no corrosion inhibitor was added to the system. Over a period of time I lost flow to a radiator, this was resolved by renewing a completely blocked section of pipework and...
  7. soother

    Ideal logic primary heat exchanger leak sealant success?

    A mate tells me he cured a heat engine leak on this boiler (confirmed by boiler isolation & dripping condensate drain) by adding K-Seal car type sealant, and It's still ok after 5 years. Has anyone else had success curing these leaks with sealant additives?
    • soother
    • Thread
    • america exchanger heat heat exchanger ideal ideal logic leak logic primary sealant usa
    • Replies: 7
    • Forum: USA
  8. O

    Heat Exchanger for new Boiler

    Hi all, 25 year old boiler need replacing. Existing boiler, 220 kW doing Aged Care Facility. I want to install a condensing boiler, but are worried about not being able to clean the system efficiently to not cause damage to the new boiler and void warranty. The best option I can see is to have...
  9. V

    Anyone got a heat exchanger for a Glowworm Hideaway 50 ?

    Hi, long shot I know, but has anyone got a heat exchanger for an old Glowworm Hideaway 50 Boiler as mine has split and is leaking !!! Thanks
    • VinnyBall
    • Thread
    • anyone exchanger glowworm heat heat exchanger
    • Replies: 1
    • Forum: Australia
  10. M

    Split heat exchanger on ideal logic

    I went to a ideal logic that is losing pressure every week. So won't fire. Have checked all visible pipework and valves no sign of a leak. I removed sump cover on front of the boiler and there was water under the heat exchanger. I dryed this off left the heating off and the water came back. Has...
  11. V

    Ideal boiler systemiser SE heat exchanger part no. E02-860

    Does anyone know where I can obtain the above heat exchanger for an ideal systemiser se boiler , Manufacturers part number 075096 or, if not available, is there a generic?
  12. S

    Blocked plate heat exchanger: heating waterway or mains waterway?

    Hoping someone can help diagnose whether the blocked plate head exchanger in my mum’s combi boiler is down to the heating waterway or mains waterway. Issue is that she only gets around a basin’s worth of hot water before the tap runs cold. No issue with water pressure from tap, and central...
  13. L

    Circuit for heat exchanger water heaters (repost)

    [Sorry, I'm reposting this as my thread has been lost due to the URL change] Hi, in a small guesthouse I have 6 water heaters with built-in heat exchanger connected to a look fed by a solar heater and a heat pump. I'm wondering how to connect these heaters to the loop. I made these three...
  14. P

    Greenstar 30cdi system leaking under heat exchanger

    Customer called me after pressuring boiler to 1.5bar. Water started coming from casing. I attended, ran boiler for about 5 minutes - no issues, re pressurised to 1.5 water started coming from under heat exchanger on shelf. Spoke to Worcester they said to prove leak on HE top up pressure...
  15. M

    Scaled Heat Exchanger? Bad enough to cause problem?

    I was recently advised "heat exchanger scaled" on a Worcester Bosch SiII combi boiler. There was a DW intermitent problem - sometimes DHW ran cold after a short while - other times worked okay. Gas installer diagnosed scaled hex. Options were to have new hex (mega cost) or replace boiler. As...
  16. B

    15mm flow and return, plate exchanger blockage?

    The combi boiler has 22mm flow and return outlets but they are immediately reduced to 15mm as they come out the boiler. After the pipes come out of the boiler, they split off into 3 branches. Branch 1 is for a single radiator only. Branch 2 feeds about 9000BTU diownstairs and branch 3 feeds...
  17. Suzan

    Boiler Heat Exchanger busted

    Hi guys, Quick question. Had 2 new rads fitted (system was drained) but I didn't test the hot water or heating after he fitted the rads. 4-5 days later I noticed there was no hot water (wasn't in the house) and I kept hearing clanging sounds after the boiler has tried to ignite then shutdown...
  18. M

    Worcester heat exchanger gasket?

    hi guys. I’ve changed a heat ex gasket on a 24ri today and it was the 1st one I’ve done. For the life of me I couldn’t seem to get the whole thing flat. I put the analyser round it to check for anything passing and didn’t pick anything up. My colleagues reckoned it looked sound but I’m after...
  19. M

    Secondary heat exchanger cleaning

    Has anyone tried to clean a partially blocked secondary heat exchanger using system chemicals instead of removing and acid cleaning or replacing it. Got a vokera procombi 85 he which goes cold unless the flow is very low.
  20. D

    Worcester Bosch 35cdi leaking around main heat exchanger

    I'm looking for some advice please. My boiler seems to be leaking from the main heat exchanger. I've posted two photos. The first shows seepage of water from underneath the heat exchanger housing. In the second photo, I've removed the condensate trap and placed a towel to wick away the drips...
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