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heat

  1. R

    What is ideal pump size for Vaillant ecoTEC Plus15kW Heat Only Boiler?

    What is the ideal pump size for Vaillant ecoTEC Plus 400 15kW Heat Only Boiler? The property is a studio with 1 large room, a small kitchen and a small bathroom. I've been advised to use Grundfos UPS3 15-50/65-130.
  2. R

    Vaillant ecoFIT 415 heat only boiler. Connecting the pump and boiler?

    Vaillant ecoFIT 415 open vent heat only boiler. For wiring the boiler and pump, should I use the 3-way wire switch" solution OR a "remote switching" solution? The pump and copper tank are situated about 25ft from the boiler. I've been told that the 3-way cable solution doesn't work well with...
  3. alex567

    heat pump and water cylinder installed away from the house, pros/cons

    I'm planning to get an air source heat pump (ASHP) installed and I'm considering my options about the location of the water cylinder as I live in a small house and space is a premium. I was thinking about building a small insulated shed about 20 to 25 metres away from the house to put the...
    • alex567
    • Thread
    • cylinder heat house pump water water cylinder
    • Replies: 10
    • Forum: Renewables
  4. V

    Hot water system not calling for heat?

    Hi. I'm hoping someone can help me to understand how our hot water system works (or maybe isn't!). We have had a new unvented system for hot water and heating put in. The gas boiler is the original one. Our problem is with the hot water. We get a cylinder full of hot water, which is good. But...
    • Vic Dones
    • Thread
    • heat hot water system water
    • Replies: 1
    • Forum: UK Plumbers Forums
  5. G

    Best economic way to heat hot water no heating

    Purchased property, all electric heating has combination cylinder doing hot water for 1 bathroom only , updating bathroom to have a shower, bath a basin and kitchen sink that needs hot water with no gas main or boiler , what’s the cheapest system to install to heat this property’s water...
  6. D

    Efficient way to heat radiators and unvented cylinder

    I have a gas boiler heating radiators and also heating an unvented cylinder. I have a Honeywell programmer which has the water heating up 1.5 hours early morning 30 mins midday and 2 hours evening The heating is on a couple of times a day. With the energy prices I am wanted to ask if hearing...
  7. J

    Radiators releasing heat when valve shut off

    Hi all, Today I noticed when the boiler is on, those radiators in the rooms I don't want heating are releasing heat even when the Drayton TRV4 valves fitted onto each of them are turned off all the way to the star symbol. Does anyone know why this is happening? Could it be due to the extra...
  8. M

    Vokera easi heat i 29c

    Recently had bolier fit and before I call vokera about the problem just thought I would ask around have a intermittent noise coming from the boiler my gas safe engineer who fit the boiler is thinking the gas valve is faulty causing the noise
  9. M

    Viessmann 100-W Heat Only and Weather Compensation

    We are a few months into our Viessmann Vitodens 100-W 19KW Heat Only boiler and it is working fine. We replaced an old 1999 Baxi. Our house is a 2 bathroom 4 bed detatched, built 1999. The engineer did not really know the Viessmann boiler and I am not convinced his approach of “turn everything...
  10. G

    Sizing Heat Sink radiator for wet hetas install

    Hi - I've had some conflicting advice so looking for confirmation please - what size should a heat sink radiator for a log burner/boiler be? I've been told by one installer 10% of output to water and another 20%. I can;t find aything in building regs and can;t find a HETAS document with that...
  11. T

    New pressurised Cylinder, heat sensor not shutting off, RF3 pack

    Hello Just had a new pressurised cylinder fitted, the old vented one was operated by a Honeywell RF2 (3 pack) and functioned normally. Having the new cylinder fitted the sensor CS92A had to have the touch sensor changed from the flat type to the push in type. The heat is set for 60c, however it...
  12. M

    Should it take an hour to heat home by 2 degrees

    I have had new boiler new rads and pipes and my house takes an hour to heat up by 2 degrees is this right?
  13. Husk24

    How much does it cost to heat water per hour?

    Hi guys trying to work out how much it costs to heat my water tank per hour, I have a Ideal logic system s30 boiler, my gas unit charge is 6.83 pence. Anybody work that out for me roughly please?
  14. Husk24

    Most efficient way to heat water in tank using ideal logic boiler

    Most efficient way to heat water in tank using ideal logic boiler? Hi guys I have a water tank as pictured in my profile with an ideal logic system boiler, during summer/spring we make use of our thermal solar for heating and other times of the year the boiler, we don’t have the heating on...
  15. A

    dream heat air source heat pump, temperature setting in heat mode.

    hi everybody i need some help please, i can't remember how to adjust the temperature setting in heat mode on my dream air source heat pump does anyone know the sequence please? any information would be much appreciated .
  16. H

    Best way to clean a heat exchanger

    I have a central heating system in a 7yr old ‘Persimmons’ new build, that has several problems related to reduced flow. A nice retired engineer on these forums, has helped me, through extensive testing, identify the heat exchanger as the culprit. The boiler is a Glowworm Ultracom 24hxi, 10...
  17. H

    Voltage for Nest E Heat Link in the UK

    Can anyone confirm that a 240v central heating wall thermostat can be replaced by the Nest E Heat Link? According to Google, the wiring needs to be low voltage so it will not work but I have seen a few comments in forums that the European version is different to the US version and does work at...
  18. ndfred

    Range Rating: Just Add up the Radiators’ Heat Output?

    I have a Vaillant boiler and want to set d.0 to something sensible, right now it is set to auto and can range from 6 kW to 37 kW. Adding up my radiators' heat output from the Stelrad website gives me 25.7 kW and my hot water cylinder coil rating it 23.9 kW. The Heat Geek Range Rating Method is...
  19. T

    Floor standing heat only

    Hi, partners grandmother has an old Ideal Mexico, floor standing heat only boiler on a gravity fed system with a 2port valve, she wants a like for like swap im wondering if anyone has any recommendations what boiler would be best to replace it with, she doesnt want a combi just a like for like swap
  20. J

    Heat exchange rate in cylinder

    Just a fast one for the experts Does say heating water entering coil in hw cylinder heat the dhw faster if say the heating presure is say a bar and a half as oppose to f and e. Also if hw cylinder was unvented would speed up heat transfer aswell?? Thanks in advance if i get a reply

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