14kW Mitsubishi Ecodan ASHP in Hertfordshire
I woke up this morning in wet Herefordshire to an Ecodan 14 system installed by a local company Caplor. The air pump is quiet and seems to be working well. The install became a nightmare as the installer found rat dropping in the attic and refused to go in there so we have been unable to add the two extra very large radiators that are needed. The old oil boiler was part of a Stanley system so we have lost our oven as well. But we were determined to reduce our carbon footprint so the oil system had to go. I had hoped that the installer would make two zones but after the discovery of rats he was keen to leave and so we only have one zone which Im disappointed at as we have one area set up as a holiday let.
Another worry is that some in the group state running costs are higher than expected. We were lucky and manged to get a Green Home voucher but with extra costs for four radiators etc I am hoping that that there is no surge in running costs.
Choosing a good tariff supply is critical. What do people recommend?
Hi @mikefitz and welcome to the forum. Your installer must have been a “townie”. All county folk have mice or rat droppings in the loft. 😊
I’m over the border in Worcestershire.
I would recommend you investigate Octopus Energy. I’ll be the first to offer my code where you receive £50 and I receive £50
share.octopus.energy/sunny-elk-398
They really are a better energy company. You will need a smart meter. I’m on Octopus Go and pay 13.9p/kWh during the day and 5p/kWh from 12:30 to 4:30am. Ideal for charging my EV. They have other agile tariffs as well.
Please do a picture story and review of your installer and installation elsewhere on the forum.
Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and Volvo EX30 Ultra Twin Performance electric vehicles with Myenergi Zappi mk1 & Ohme chargers
@mikefitz, how long have you been running your ASHP?
The tariff is key to the running costs - we've been using Symbio as our electricity provider since November. They're the best rates we could find. Their customer service is non-existent, which hasn't been an issue for us; yet.
Our rads are also on one zone, which is a pain, but you'll discover with an ASHP that it doesn't make a difference to the running costs whether you're heating everything or just certain zones. If you want to regulate temperatures in your holiday let, get some smart TRVs or thermostats that are passwords protected and people won't be able to crank up the temperatures. Our Salus smart thermostats can be locked to prevent fiddling.
Get a copy of The Ultimate Guide to Heat Pumps
Subscribe and follow our YouTube channel!
@mikefitz, I had no idea it was such a recent install. Good luck and let us know how you come along.
Get a copy of The Ultimate Guide to Heat Pumps
Subscribe and follow our YouTube channel!
@mikefitz I could maybe understand if a rat ran over him or bit him but just droppings? What a wimp.
Tariffs can be a bit of a minefield and tips from others don't always work because tariffs aren't all nationwide. Also, a lot of the comparison sites are not whole market. Use the Citizens Advice or Which comparison site because they are. We use Symbio. I'm still on Economy 7 at 11.6 day/7.6 night but that's not available any more. Their billing method is 'interesting' to say the least but they were the cheapest for us by quite a long way so I put up with it. @julianc's Octopus deal looks interesting, especially if you have an EV or battery storage.
@mikefitz, we run our heating at 45C during the winter. With our new Stelrad’s we might drop off to 40C next winter because they chuck out a lot of heat.
Get a copy of The Ultimate Guide to Heat Pumps
Subscribe and follow our YouTube channel!
- 26 Forums
- 2,406 Topics
- 54.6 K Posts
- 395 Online
- 6,092 Members
Join Us!
Worth Watching
Latest Posts
-
RE: New Daikin 11kW Altherma 3M install - is it working as it should?
I forgot to mention: Octopus measured our heat loss at ...
By Toodles , 4 minutes ago
-
RE: Recommended home battery inverters + regulatory matters - help requested
When the grid is off, there it could be that the neutra...
By Batpred , 12 minutes ago
-
RE: Considering MLCP (Multi-Layer Composite Pipe) for ASHP
Thanks Mars and thank you for reaching out to so many p...
By iotum , 25 minutes ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: @davec Manufacturer: Peak Energy Mode...
By DaveC , 25 minutes ago
-
RE: Rate the quality of your heat pump design and installation
@radwhispererdwhisperereorourkeditor Well, the guy came...
By razz , 30 minutes ago
-
RE: Setback savings - fact or fiction?
Given the weather has been relatively stable, the empir...
By Batpred , 1 hour ago
-
RE: Post-Traumatic Heat Pump Stress Disorder
@jamespa Hi James - thanks so much! That sounds like ut...
By johnbroome , 2 hours ago
-
RE: Heat pump not reaching flow temperature
@jamespa system design was for 40 degrees FT at -2 degr...
By DaveC , 2 hours ago
-
RE: GSHP WOES! Midland based engineer recommendations?
@editor That is very kind! Thank you so much.
By johnbroome , 2 hours ago
-
RE: ASHP Energy Consumption: Aira 12kW heat pump
@wally Hi I am not sure how large your house is b...
By TechnoGeek , 4 hours ago
-
Please help with the settings ecodan
I have a 160 square meter house, first floor 6 radiator...
By nose1972 , 4 hours ago
-
RE: Predicted Heat Loss & Needs from MCS calcs vs EPC vs actual
I've been thinking along similar lines to @tim441 from ...
By Sheriff Fatman , 4 hours ago
-
Thanks, @technogeek. Good to hear about the accuracy. ...
By Majordennisbloodnok , 4 hours ago
-
RE: Advice for a novice on Mitsubishi Ecodan 6kW
In my case it was a very specific pattern of behaviour ...
By Sheriff Fatman , 5 hours ago
-
RE: Vaillant aroTherm not heating with many faults
@ashp-bobba Yeah I'll give it a go, will check filter...
By Anon67 , 5 hours ago
-
RE: RDSAP10 effect on existing heat pump EPC rating?
@transparent Perhaps the names at the end of the docume...
By Toodles , 5 hours ago
-
RE: Heatpunk Floor plan issues
@jamiejones85 A2A they will design on dynamic heat loss...
By ASHP-BOBBA , 6 hours ago
-
RE: Fan unit Making terrible noise HELP!!
can you post a video looking inside, at and through the...
By ASHP-BOBBA , 6 hours ago
-
RE: Power outages and storms: A surprisingly good DNO experience
Agreed, which is no more nor less than a customer shoul...
By Majordennisbloodnok , 23 hours ago


