heater
Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. "Refrigeration" is sometimes added to the field's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).
HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels, and senior living facilities; medium to large industrial and office buildings such as skyscrapers and hospitals; vehicles such as cars, trains, airplanes, ships and submarines; and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.
Ventilating or ventilation (the "V" in HVAC) is the process of exchanging or replacing air in any space to provide high indoor air quality which involves temperature control, oxygen replenishment, and removal of moisture, odors, smoke, heat, dust, airborne bacteria, carbon dioxide, and other gases. Ventilation removes unpleasant smells and excessive moisture, introduces outside air, keeps interior building air circulating, and prevents stagnation of the interior air. Methods for ventilating a building are divided into mechanical/forced and natural types.
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HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels, and senior living facilities; medium to large industrial and office buildings such as skyscrapers and hospitals; vehicles such as cars, trains, airplanes, ships and submarines; and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.
Ventilating or ventilation (the "V" in HVAC) is the process of exchanging or replacing air in any space to provide high indoor air quality which involves temperature control, oxygen replenishment, and removal of moisture, odors, smoke, heat, dust, airborne bacteria, carbon dioxide, and other gases. Ventilation removes unpleasant smells and excessive moisture, introduces outside air, keeps interior building air circulating, and prevents stagnation of the interior air. Methods for ventilating a building are divided into mechanical/forced and natural types.
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Economy 7 Immersion Heater Timer
Hi All, I have a very strange problem to solve. We are on economy 7 metering with 2 CU, 1 for appliances/lights and 1 for our heaters and the immersion heater. The immersion heater has its own 16amp fuse on the CU. The problem we have is the immersion heater switches on about 3pm and goes off... -
M
Equivalent part number for NewLec immersion heater NL27PT
I have an immersion heater Newlec NL27PT. How do I check the heating element and thermostat if either is defective? Also, what is the equivalent part number for the heating element and the thermostat as NL27PT is not available? -
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Replacement for Britony 2t water heater
Hello everyone, It’s been a while. Happy new year. I’m looking to replace a Britony 2t water heater and just wanted to know what replacement options are out there? I mainly fit boilers, so it’s not something I do. The customer has already bought a replacement Ferroli Sky Eco 17F (which I’ve...- village idiot
- Thread
- britony heater replacement water water heater year
- Replies: 2
- Forum: Gas Engineers Forum
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Immersion heater overheating
Hello, i have a job that had an immersion heater overheating, i didn't know how old it was so just replaced it as they don't seem to last these days. Within a week it had overheated, so i reset it. Now a month later it has gone again, and maybe once more. It's a 14" immersion, incoloy/titanium... -
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immersion heater on s plan
Is an immersion heater on a splan usually just used for back up. Incase the boiler stops working thus no flow through the coil. Wentto a house where the customer keeps the immersion on all year around. So his basically using it as a direct cylinder? -
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Ideas to replace gas wall heater
Hi all , my elderly parents have just had there gas wall heater in kitchen blanked off due to regs ( to close to open window) and I am looking for ideas what to replace with , something cheap to run would be nice thanks Howy -
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Combi boiler combined with immersion heater using solar PV
Hello, I have solar panels (PV not thermal) on my roof which generate a lot more electricity than I use, but no batteries. My combi boiler has just broken and I need a new one. I was wondering how feasible it would be to get an immersion heater installed as well as a new combi boiler and an...- Bananna334
- Thread
- america boiler combi combi boiler combined heater immersion immersion heater solar usa using
- Replies: 5
- Forum: USA
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Very loud Vaillant water heater, video provide
I have a solar powered water heater, on some days its extremely loud for a few hours. Most days it's silent and there's no noise when the sun goes down. First video is with the cover on when it's making the most noise View: https://youtu.be/AgFyb34Ej9s Second video when it calms down a... -
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Immersion heater: copper, Incoloy or titanium element?
Hi, I'm replacing a 14" copper immersion heater installed into a Fortic hot water cylinder. The heater failed after just three years. Hoping to get more life out of the next one, I've ordered an Incoloy, but am wondering whether to go for the titanium instead. It's only an extra couple of...- boilingpoint
- Thread
- america copper element heater immersion immersion heater incoloy tesla titanium usa
- Replies: 7
- Forum: USA
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Bsxi wall heater removal
Hi can anyone tell me how I can remove the pipe fitting from the connection. Is it the silver nut above the isolator valve I need to undo or the brass nut just above the pipe connection. Thanks -
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Shower mixer 'pipe interrupter'
Hi there, I have a 'Kospel S.A. PPE2 electronic LCD 18/21/24 kW (110788)' instantaneous water heater, and I am getting a concealed shower mixer to feed to a head and hose, so on the mixer has a diverter 'pull' button. The shower mixer comes with two options: with a 'pipe interrupter' and... -
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Tankless water heater ( undersink )
Hello. I notice several tankless water heater units being sold Ebay. Some of the listings show these units fitted under sinks and connected directly to the hot side of a mixer tap. I had been under the impression, that units such as these required an open vent on the outlet side of the... -
J
Gas patio heater service
Anybody know local firm in Edinburgh Scotland who can carry out a service to a gas patio heater. Tried out the usual cleaning of pilot etc but burner ignites for minutes and starts giving a roaring noise and yellow flame. Could it be a gas/air mixture problem. Thanks.- John Grant
- Thread
- checkatrade engineers find gas gas engineers heater local mybuilder service
- Replies: 0
- Forum: Find Local Gas Engineers
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replacement for simex electric water heater ?
Hi, I have a large electric water heater, its rusty and leaking at the bottom nr the electrics. I cant see any numbers but its 680 x 450, big enough for a bath.Im guessing it may be 80L but not sure ? I cant find the same online, can anyone recommend a reasonably priced equivalent please , its... -
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Help with water heater
Hi all I have a electric water heater and for the last 2 days this box on the flow pipe has been buzzing is this a issue? The box has a lever that’s on auto. -
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Plumbers paste on immersion heater compression valves
So did a job for a friend yesterday and made (i hope) a small muckup.... Installed a unvented heatrae sadia multipoint 15 but i used plumbers paste on all my compression elbows about 10 of them i only put it on the male threads. The instructions state that it should not be used as it may...- Johnny Bruv
- Thread
- america compression heater immersion immersion heater paste plumbers usa valves
- Replies: 8
- Forum: USA
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Water heater issues/noise
Hello: I have a year old water heater. About a month ago, I noticed that after somebody takes a shower, I can hear the flow of water (through the WH) when another source of water is being used ie; the water dispenser from the fridge or any of the sinks in the house. The sound coincides with the... -
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Help!! Unvented water heater
I moved into a property last month and the unvented water immersion heater has been the bane of my life. I noticed hot water was coming through the tundish so called a plumber out. He replaced the heating element and also pumped up the booster cylinder as it had no charge in it. 2 weeks later... -
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Leaking joint on hot water outlet pipe of unvented water heater
Hello All, I've got a small leak where the pipe of the hot water outlet of an unvented water heater joins the valve. I'm attaching a couple of photos to give an idea of the set up. Is there a good solution that doesn't involve resoldering the joint? Many thanks. -
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JOHNSON STARLEY WATER HEATER
janus 2/30 .25 years old water heater theremacouple gone universal wont work any ideas if not i ll have to buy a burner unit 300 pound ,any ideas thanks a lot ,tony- tony forde
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- heater water water heater
- Replies: 2
- Forum: The Welcome Wagon :)
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