Welcome back to day three of our seven-day series on future-proofing your home. If you missed the first couple of days, we’ve been chatting all about how to make your place in Farnham, Guildford, or Bordon a bit more "2026-ready." Today is the big one though. We are talking about the bit of kit everyone’s heard of but maybe doesn’t quite get yet: the Air Source Heat Pump (ASHP).
It’s the secret to a sustainable Surrey home and honestly, once you see how they work, you’ll wonder why we spent so many years burning gas in there cupboards. Most people think they are some futuristic space technology but they’re actually pretty simple when you break it down and we’ve been installing them for ages now.
So, what actually is an Air Source Heat Pump?
Imagine your fridge. You know how it stays cold inside but the back of it feels a bit warm? That’s because it’s pulling the heat out of the food and pushing it into your kitchen. An air source heat pump is basically a fridge but in reverse. It sits outside your house looking like a big fan unit and it sucks in the air from outside. Even when it’s freezing in Guildford or Bordon, there is still "heat energy" in that air.
The pump takes that air, runs it over a special liquid called a refrigerant that boils at a crazy low temperature, and then squeezes it. When you squeeze a gas really hard (compress it), it gets hot. Very hot. That heat is then sent into your home to warm up your underfloor heating or your radiators. It’s magic, really. You get about 3 or 4 units of heat for every 1 unit of electricity you use. Try getting that out of an old boiler!
Why Surrey residents are making the switch
We’ve seen a massive jump in heat pump installation in Farnham and Guildford recently. Part of it is the environment, sure, but a big part is just making sense of the numbers. Our local climate here in the south is actually perfect for ASHPs because we don’t usually get those Arctic temperatures they get up north.
When we install these systems, especially in houses with underfloor heating, the comfort levels are just different. It’s a steady, gentle warmth. No more of that "boilers on for twenty minutes then it’s roasting, boilers off then it’s freezing" cycle that keeps everyone's thermostat fingers busy all night. Plus, if you’ve got a PV solar panel setup on the roof (check back to yesterday’s post!), you can literally use the sun to power your heating. It’s the ultimate combo.
The £7,500 "Secret" (The Boiler Upgrade Scheme)
Right, let’s talk money because that’s usually where people get a bit nervous. Yes, a heat pump costs more to buy than a standard gas boiler. But, the government is currently handing out £7,500 grants through the Boiler Upgrade Scheme (BUS). Because we are professional installers, we handle all that paperwork for you.
When you take that £7,500 off the price, the cost of getting a high-end boiler installation in Farnham or Guildford vs a heat pump becomes a much closer race. And with gas prices being what they are these days, the long-term savings on your bills start to look very tasty indeed. Who doesn't want a cheaper bill at the end of the month?
Is your home ready for the "Big Fan"?
There are a few things we always check before we say "yes, let's do it." First is insulation. If your house is leakier than a sieve, all that lovely heat-pump warmth is just going to fly out the windows. We often tell people to sort there loft insulation out first.
Second is the radiators. Because heat pumps run at a lower temperature than a gas boiler (think "warm and steady" rather than "scorching hot"), you sometimes need slightly bigger radiators to get the same heat into the room. Or, better yet, we can install underfloor heating which is basically the heat pump's best friend.
We often see people who are worried about the "whooshing" noise. Modern units are incredibly quiet now, about the same as a fridge humming. If you place them right (and we’ve got a real eye for that), you won’t even know it’s there. We’ve even done installations next to pools and ponds in Farnham where the owners wanted zero noise while they were relaxing, and it worked out perfectly.
The installation process: What really happens?
We like to keep things tidy. We know having people in your house can be a pain, so we try to be as fast and responsive as possible. A typical installation involves:
- Removing the old boiler: Saying goodbye to that old clunker.
- Fitting the outdoor unit: This usually goes on a side wall or in the garden on a small concrete base.
- Updating the cylinder: You’ll need a specific heat-pump-ready hot water cylinder.
- Connecting the pipework: This is where our plumbing expertise comes in. We make sure everything is insulated perfectly so you don't lose any heat on the way to the tap.
It usually takes a few days, but the results speak for themselves. You end up with a system that is future-proof, eco-conscious, and ready for whatever the energy market throws at us next.
Common Myths we hear in the pub
- "They don't work in the cold": Wrong. They work all the way down to -20°C. If it's -20°C in Bordon, we’ve got bigger problems than our heating!
- "They are too expensive": With the £7,500 grant, they are very competitive now.
- "They are ugly": Modern units actually look quite slick and techy. Plus, you can hide them with a bit of clever landscaping.
Wrapping it up
Switching to an air source heat pump is one of the best things you can do for your home’s value and your carbon footprint. Whether you are in the middle of a massive bathroom renovation in Guildford or just looking to replace a dying boiler, it’s worth a chat.
We are Heat Eco Building Services, and we love this stuff. We're local, we're friendly, and we don't charge the earth. If you’re curious about whether your home in Farnham, Guildford, or Bordon is right for a heat pump, just give us a shout. We can come over, have a look at your current setup, and give you a straight-up, fair price.
Stay tuned for day four of our series tomorrow, where we'll be diving into battery storage: the perfect partner for your new heat pump!
Ready to go green? Contact us today and let's get your home future-proofed.