Do thick walls make for warm houses?
Discover how improving your home's insulation can significantly reduce heat loss and lower heating costs, using simple comparisons like U-values and effective materials such as Celotex. Learn why modern cavity...
Graham Hendra
Heat Pumps: A No-Nonsense Guide
If you’re a reader of The Mail or The Telegraph, scroll on because this is going to ruin your day. A couple of years ago, I retired from heat pumps,...
Cold Drink Conspiracy: Fridge Tech Reveals the Truth About Heat Pumps
Discover the truth behind heat pumps and why they’re reliable despite scepticism from some media outlets. Learn how everyday appliances like fridges use the same technology, proving heat pumps do...
Weather compensation: The Lizzie curve
If you’ve ever installed a Samsung heat pump, or come to think of it a Midea or a Hitachi, you will note one similarity. When you set up your weather...
Saving money on your electricity bill at home – an engineer’s guide
Discover practical tips for reducing your energy consumption and saving money on your electricity bills in the UK. Learn how to make simple changes to your daily habits and household...
How efficient could your heat pump be in an ideal world?
There are only a couple of rules that actually make any sense, mostly because they were not written by politicians. The one I want to explore today is the theoretical...
Does efficiency matter?
I was speaking to someone from BEIS and they said something that made me think: “If we make power from renewable sources, does efficiency really matter?” As a heat pump...
How many heat pumps are NOT eligible for the BUS?
The Boiler Upgrade Scheme (BUS) is now officially live. For those that don't know, this is the £5,000 heat pump voucher scheme. One of the criteria is that to be...
Do you know how much taking a shower or filling your bath costs?
Everyone is screaming about energy costs. Wouldn't it help if we told people what everything costs and let them make their own choices? Heat maths isn't very hard, it's just...
Why architects should spec Hitachi heat pumps
Many years ago when Top Gear was good, there was a brilliant piece about SAAB. For those of you who don’t know, SAAB made ground-breaking, but quirky cars which were...
