Hi, new here so I’m hoping I’ve posted this in the correct forum. Would really appreciate some help with a central heating issue. We’ve had 3 plumbers out and no one has been able to diagnose or fix the problem. Hoping some experts here might be able to help!
The issue - over the last 4 weeks our hot water isn’t heating sufficiently / consistently. Some days we have plenty of hot water other days we only have time for a 5 minute shower before the water goes lukewarm and then cold. Our upstairs radiators are also not heating consistently. Some get hot others lukewarm, others barely heating at all. Was all working fine until recently.
The system - gas system boiler, underfloor heating on ground floor, normal radiators on first and second floors. Underfloor heating is controlled by individual thermostats in every room downstairs. Hot water tank is under the stairs and has a thermostat fitted, along with a recirculation system. The timing for the upstairs heating and the hot water is controlled by an electronic timer. The house was only built 2 years ago so everything is quite new. I have attached pictures of the plumbing around the hot water tank and the manifolds for the underfloor heating.
Relevant info - husband changed a radiator a few days before we started experiencing these issues. I’m inclined to think this is related but don’t rule out a coincidence!
Things we’ve tried so far (on plumbers advice) - opening the red valve that is on the top of the pipe that runs between the hot water tank and the underfloor heating manifolds. All that happened was the underfloor heating became less effective, so I think it just took away some of the flow to the underfloor heating. Having the valve half open seems to be the correct balance and is how it was when the system was working, so we’ve put that back as it was. Took off the thermostat on the hot water tank to see if that was the issue. Still experienced issues with hot water so have put that back on. Boiler seems to be working fine. No error messages and temperature increases/ boiler fires when we turn the heating / hot water on. Checked diverter valve - it seems to operate as it should when hot water turned on.
The hot water seems to work better if we just boost it rather than having it heating at the same time the central heating is on. But this was never an issue before.
I hope that gives enough info. I am at the end of my tether not knowing whether we will be able to have hot showers before work in the morning. If anyone has any suggestions please please let me know!
The issue - over the last 4 weeks our hot water isn’t heating sufficiently / consistently. Some days we have plenty of hot water other days we only have time for a 5 minute shower before the water goes lukewarm and then cold. Our upstairs radiators are also not heating consistently. Some get hot others lukewarm, others barely heating at all. Was all working fine until recently.
The system - gas system boiler, underfloor heating on ground floor, normal radiators on first and second floors. Underfloor heating is controlled by individual thermostats in every room downstairs. Hot water tank is under the stairs and has a thermostat fitted, along with a recirculation system. The timing for the upstairs heating and the hot water is controlled by an electronic timer. The house was only built 2 years ago so everything is quite new. I have attached pictures of the plumbing around the hot water tank and the manifolds for the underfloor heating.
Relevant info - husband changed a radiator a few days before we started experiencing these issues. I’m inclined to think this is related but don’t rule out a coincidence!
Things we’ve tried so far (on plumbers advice) - opening the red valve that is on the top of the pipe that runs between the hot water tank and the underfloor heating manifolds. All that happened was the underfloor heating became less effective, so I think it just took away some of the flow to the underfloor heating. Having the valve half open seems to be the correct balance and is how it was when the system was working, so we’ve put that back as it was. Took off the thermostat on the hot water tank to see if that was the issue. Still experienced issues with hot water so have put that back on. Boiler seems to be working fine. No error messages and temperature increases/ boiler fires when we turn the heating / hot water on. Checked diverter valve - it seems to operate as it should when hot water turned on.
The hot water seems to work better if we just boost it rather than having it heating at the same time the central heating is on. But this was never an issue before.
I hope that gives enough info. I am at the end of my tether not knowing whether we will be able to have hot showers before work in the morning. If anyone has any suggestions please please let me know!
