Making the switch to a heat pump is a brilliant move for homeowners who want to futureproof their property, reduce running costs and lower their carbon footprint.
But getting the most out of your investment starts well before the installer shows up.
A little preparation goes a long way in making the process smoother, faster and less disruptive.
At Renewable Heating Hub, we’ve guided thousands of homeowners through the ins and outs of renewable heating.
If you’re gearing up for a heat pump installation, here’s what you need to know to get your home (and yourself) ready.
Advanced, modern heat pumps are ultra quiet, with some endorsed by the Quiet Mark
Mars Founding Editor, Renewable Heating Hub
Pick the right outdoor spot
Where your outdoor unit lives can make or break your heat pump’s efficiency. Ideally, it should be positioned on a stable, level surface as close to your home as possible to minimise pipe runs and heat loss.
Advanced, modern heat pumps are ultra quiet, with some endorsed by the Quiet Mark certification programme. For other heat pumps it may be best to avoid placing the outdoor unit near windows where noise might be an issue. Some setups may even require a formal sound assessment to meet local planning requirements
If the unit needs to be sited farther away (sometimes the only option for period or listed properties), you’ll need to plan for underground pipework. That may mean digging a trench to spec, either DIY or by hiring a contractor. Keep in mind: longer runs equal more opportunity for heat loss, so shorter is always better.
And don’t skimp on the base. These units are hefty (often 150kg or more) so a solid concrete or slab base is essential.
It’s also worth bearing in mind that the outdoor unit is called a condenser, meaning that it will condense water from the air and this water will then drip on the ground. Site the unit over gravel so that the water can drain away properly.
Get your interior ready
Inside the home, most installations will involve more than just basic plumbing and calling it a day. While the latest advanced heat pumps can deliver water temperatures of 70°C, with other models, you may need new, larger radiators (or even underfloor heating) to suit the lower flow temperatures of a heat pump. That can mean installers lifting floorboards, adjusting pipework and working in multiple rooms.
Take time to clear the decks: move furniture, pack away valuables and give your installer space to work. It’ll save time and reduce the risk of damage.
Hot water cylinders often need replacing too. Whether it’s going in your airing cupboard, loft or utility room, make sure there’s enough clearance for maintenance and access.
Be prepared for a few days of disruption
Some good heat pump installations can take 4-7 days. Your heating will be offline for most of that time, though hot water is usually back within 24-48 hours.
Good installers will lay down dust sheets and protect your home, but it never hurts to throw in some extra prep, especially if you’ve got expensive flooring or pets that don’t like upheaval.
Being available (or at least on call) during the install is wise. If something unexpected crops up (it often does in older homes), decisions can be made quickly without slowing things down.
Don’t skip the handover
Once the work is done, make sure you get a proper handover.
Your installer should walk you through how the system works, what maintenance is required and how to tweak your settings if your comfort levels change with the seasons.
The best systems will also include internet-based controls which can link to Google Home or Alexa, allowing you to control the system from your phone, so make sure you get full instructions if that is also included.
Final Tips
Double-check the delivery details of your heat pump unit. Some installers bring it on day one, while others arrange for it to arrive earlier. Make sure it’s stored safely if it arrives in advance.
And if you’re feeling overwhelmed, you’re not alone.
Our Renewable Heating Hub forums are packed with real-world tips, lessons learned and helpful advice from homeowners who’ve already made the switch.
Good Prep = Great Performance
Proper prep might not be the most glamorous part of the heat pump journey, but it’s where success starts.
By thinking ahead (inside and out) you’ll reduce disruption, save time and set your system up for peak performance from day one.
Every home is different, and every installation has its quirks. Don’t be afraid to ask questions, get clarity and take control of the process.
The more prepared you are, the better your transition to low-carbon heating will be, and the quicker you’ll start reaping the benefits.
Mars - Founding Editor, Renewable Heating Hub
