Revisiting an Air To Air installation: How Much Energy Has It Used?

Good to see that Heat Pump AC units are gradually gaining ground. It's a pity the Gov. doesn't provide financial help with their installation.

Someone needs to make brick coloured ducting for the A2A installs.

House is lovely and warm says man with t shirt and two fleeces on😀😀😀

Really enjoyed watching this 2 part episode and Mike seems like a really top guy too. Nice to have lovely customers like Mike I’m sure Dameon. Loved the comment “had to snap the dog off a lamppost earlier!” 😂😂😂

I guess the true cost is a bit lower as he has some solar PV already installed so this looks like a really good choice. Nice well thought out installation and in my opinion, better than air to water any day.

Very nice video and great to see real world experience. Our Daikins always overshoots the temperature by 2 C and makes things very tricky to set, but we don't have this problem with Mitsubishi.

Not sure on the argument of "wasting" hot water that's heated to 60C for example when mixed down with cold water in a shower to say 40C... surely you need less 60C water mixed with cold for the shower vs just having a 40C flow of hot water? I guess there are losses in there and a hot water tank presumably loses more heat at a higher temp but still, I don't think there's as much waste as being suggested - please correct me if I'm wrong...

Great video... I'd love to see more videos from you as you're a great communicator. 👍

Would good to see more content from your channel.

I worked it out because I'm sad. For the space heating: 190kWh electricity use total Would have been good to calculate the real cop. Let's assume it's 3.2. In reality, it should be higher. 10p/kWh gas rate 90% gas boiler efficiency equivalent 190*3.2=608kWh delivered energy for 15 days 608kWh/15=40.53kWh/day delivered 40.53*1.1=£44.58 gas boiler equivalent kWh usage adjusted for 90% efficiency 44.58*0.1=£4.458/day So it would have cost around £4.458/day in gas, which is almost the same as the electricity cost. So if the cop is better than about 3.2, air-air will become cheaper.

It just makes sense. Spend huge amounts of money installing a heat pump to avoid using gas so you can buy more expensive electricity where the electricity was made burning gas in a power station. Pure genius.

Nice video! Followed Mike for some time with his radio videos. Was very interested in the videos he / you did as we have a heat air to water system for the whole house. Very impressed with the install. Mark.

i would have thought mixing with cold water just means less water needs to be heated so it's a zero-sum game. surely the inefficiency comes from losing heat while it sits in the tank but i think i heard him say that's minimal nowadays.

Wow great video great chat and honesty, about heat pumps and talking Sence about a gas boiler.

Ive been given a 6kw Fujitsu Siemens air to air heatpump , now to find someone to do the pipe work :)

He has a look that says, "I'm not getting any pv and it's a dear doo to heat with electric" 😂

There are probably inefficiencies from heating water more than you need, but they don't come from the moment you add the cold water. See the first law of thermodynamics ;)

550 for the direct gas boiler compared to maybe solar with batteries and maybe a mixergy or sunamp ? It would be interesting to see the cost difference. Really interested to see the running costs over time but air to air sounds like a good alternative to air to water. The cooling aspect makes things really interesting.

I'd love to know how the system faired over the period just before Xmas where we had -10C in Manchester.

Great information, could I ask what the usage has been over the past 14 days