After buying a U.K. home equipped with solar panels and a heat pump, a first-time owner found that the taps weren't producing hot water.
Maybe more worryingly, they didn't understand how the setup worked.
Here's what to know
Without any answers in sight, they headed to the r/ukheatpumps subreddit for answers.
"I have no idea what I'm doing," the original poster wrote, saying a plumber spent about 15 minutes at the house, charged £50 ($66.33), and said the boiler was fine before advising them to have the heat pump checked.
According to commenters, the home likely had two systems handling the job. There usually is an outdoor heat pump and a large indoor cylinder for hot water, with an immersion heater available as backup.
"Locate it and use it to get hot water in the house until you get the heat pump sorted," one user explained. "Be careful, as it's quite expensive to run the immersion heater and should not be used on a regular basis."
Others asked whether the buyer had access to a wall controller or app. The OP replied: "I do have one of those, yes. It might be broken, though."
Palmetto can help explain efficient HVACs and heat pumps and connect people with vetted installers through its Comfort Plan network.
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More background
Heat pumps can be far more efficient than conventional heating systems because they move heat instead of generating it by burning fuel. That can translate into less energy use and lower monthly costs, especially when paired with good insulation and smart controls.
A person can buy a home with advanced equipment and still end up without hot water if no one explains the controller, app access, maintenance requirements, or backup settings.
A plumber also may not be the right person to diagnose a system that combines heat pump hardware, hot water storage, and digital controls. Someone with expertise could get the OP on the right track.
"More than likely there will be an app to manage the heat pump, set schedules, etc., whereas you can set things up using the wall-installed controller. It's somewhat clunky, and the app is much easier to control," the commenter who explained the immersion heater wrote.
What can be done?
If you own a home with an unfamiliar system, start with the basics. Find the model number, locate the controller, check whether there is an app, and identify the hot water cylinder and backup immersion switch. That information can help a specialist troubleshoot the issue and may save money on a technician's visit.
If you are considering an upgrade, Palmetto's Comfort Plan network can connect homeowners with efficient heating and cooling solutions through vetted installers. If you're not ready to spend up front, the Comfort Plan includes $0 down options that can lower your heating and cooling costs by up to 50% and include 12 years of maintenance.
Homeowners can also pair solar panels with efficient HVACs to drive their utility costs even lower. EnergySage makes it easy to find the best solar system and installer for your home and budget, saving you up to $10,000 on an installation.
Where can I learn more?
The same learning curve around heat pumps, hot water systems, and home upgrades pops up all the time.
• In the U.K., one homeowner pursued a 400%-efficient heat pump and ran into installation trade-offs.
• A home expert said critical water heater maintenance tips can prevent breakdowns and cut callout costs.
• EnergySage pairs homeowners with their own expert energy advisers to simplify heat pump decisions.
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