Air to air heat pump?

mk555blue

Hello everyone. I’m in the process of renovating a 1950s 3 bed semi, and my priorities are insulation and heating. The current heating system is old storage heaters, and immersion for hot water. I’ve been researching different heating systems for a while now, and would appreciate any input to help in my decision.
I’ve begun to like the idea of using an air to air heat pump. I see Mitsubishi make a model capable of powering up to 10 blowers. I like the idea of also being used for cooling in the summer. Hot water heating would be an issue, but I see a number of heat pump water cylinders on the market which could suffice.
We have no mains gas here so that is not an option. My main aim is cost effectiveness as well as the ability to heat a house well.
So, does anyone have much experience in either air to air or heat pump water cylinders? Do you find they work well, are they expensive to run, maintain and install? Are they noisy? Any feedback appreciated.

QrizB

You might want to read this thread by @danrv who did something similar with his semi-det.

https://forums.moneysavingexpert.com/discussion/6269423/7-8k-for-aircon-system

Danrv is still a forum user; hopefully he'll be along with an update.

mk555blue

QrizB said:

You might want to read this thread by @danrv who did something similar with his semi-det.

https://forums.moneysavingexpert.com/discussion/6269423/7-8k-for-aircon-system

Danrv is still a forum user; hopefully he'll be along with an update.

Thanks for that. Good thread to read, will be good to hear an update.

danrv

mk555blue said:

Hello everyone. I’m in the process of renovating a 1950s 3 bed semi, and my priorities are insulation and heating. The current heating system is old storage heaters, and immersion for hot water. I’ve been researching different heating systems for a while now, and would appreciate any input to help in my decision.
I’ve begun to like the idea of using an air to air heat pump. I see Mitsubishi make a model capable of powering up to 10 blowers. I like the idea of also being used for cooling in the summer. Hot water heating would be an issue, but I see a number of heat pump water cylinders on the market which could suffice.
We have no mains gas here so that is not an option. My main aim is cost effectiveness as well as the ability to heat a house well.
So, does anyone have much experience in either air to air or heat pump water cylinders? Do you find they work well, are they expensive to run, maintain and install? Are they noisy? Any feedback appreciated.

I'm pleased with my Toshiba 3 way Multi Split Aircon. It suits me as a cost effective heating option for an all electric property.
It's for downstairs only but it also heats the landing too. I use convector electric radiators for the bedrooms.
No water heating but the immersion heater tank gives a good amount of hot water on an hour's heat up.

Running costs are similar to the warm air heater it replaced. I'm still on Economy 10 tariff with the off peak hours during the day so that kind of works well.
No maintenance needed as it's new. I do get a yearly reminder for a service but not sure if it's needed.
Install cost was around £6900. 

For noise, the outdoor invertor pump can be 
heard inside as it's mounted on the gable wall. More so at start up.
The air handlers obviously have a level of air noise but it's not too bad. I very rarely use it in cooling mode.