Zehnder ComfoPost CW6 with ASHP?
I am considering replacing my gas boiler with an ASHP and also upgrading my MVHR system. A couple of items I am considering are the Zehnder ComfoPost CW6 and the Zehnder NOX40-125. Space is tight and a careful design will be required. I would also like to improve the acoustic insulation of the loft space where the main MVHR components are installed.
Does anyone have experience of using a chiller like the CW6 attached to a cooling circuit on an ASHP? Last year's heatwave caused uncomfortable overheating in my house and I am interested in potential solutions.
I have tried asking Zehnder for further information but have not received any replies either to forms submitted via their website or to emails sent to a number of their email addresses (and from two of my email addresses). I have even tried whatever the bird site is called this week. I find it really frustrating when companies publish contact details but then don't reply!
Posted by: @fazelWhat exactly did you ask/want to know from Zehnder?
I would like to know if they offer design advice and can recommend installers that might consider upgrading my existing system. There is a good supply of technical information available on their website but I am not an MVHR system designer. The existing system was specified by the architects on an earlier project and installed by contractors chosen by them.
It would be reassuring to know that should problems occur they would respond to technical support requests, even if they just suggested that the request should be sent elsewhere.
If you want to include cooling, have you considered air to air heat pumps? Depends on the number of rooms you consider needing cooling, and the visual impact of the DX fan coil units internally. Quite a number of air to water ASHPs will heat and cool, but cooling requires fan coil units, either low level radiator style units, or high level ceiling or wall units. MVHR system airflows are unlikely to have a high enough airflow volume to enable DX coils to be added that will be effective. The amount of cooling you'll get out of the them will be very low.
- 25 Forums
- 1,437 Topics
- 30.1 K Posts
- 12 Online
- 1,219 Members
Join Us!
Latest Posts
-
@toodles will you be offering tea, coffee and French pa...
By Mars , 7 hours ago
-
RE: Spacing for roof fixing bolts ?
I think @saenergy will have the definitive answer for t...
By Mars , 7 hours ago
-
RE: ASHP sizing - value of Heat Transfer Coefficient
You say that you have measured your hourly gas usage du...
By Mike H , 8 hours ago
-
RE: Home energy storage & battery register
Hanchu ESS - Home-ESS-LV9.4K (9.4kWh)
By IRMartini , 15 hours ago
-
RE: Incorrect Billing of Customers with a Smart Meter
Part 5 - Has the Randomised Offset been correctly appli...
By Transparent , 17 hours ago
-
RE: Insulation of flow and return Heat Pump piping
@dr_dongle I saw a YouTube presentation from one of ins...
By Toodles , 19 hours ago
-
RE: Jokes and fun posts about heat pumps and renewables
@editor Oh Mars, just as I was becoming interested … To...
By Toodles , 21 hours ago
-
Are You Getting the Most Out of Your Renewable Energy?
This article is aimed at you if you have recently taken...
By Majordennisbloodnok , 1 day ago
-
It is certainly possible, using a modbus connection. If...
By cathodeRay , 2 days ago
-
I did another reconnection/ reconfiguration session wit...
By Abernyte , 3 days ago
-
RE: Recommended ASHP installers in Hampshire
@benson After my initial enquiries with Octopus, we had...
By Toodles , 3 days ago
-
RE: Air source heat pump roll call
To help bolster the rather small number of NIBE owners ...
By Steve D , 3 days ago
-
RE: A beginner's journey into DIY home energy storage - no solar!
@editor All good here! I'm happy to say that the system...
By KoRWraith , 3 days ago
-
RE: Say hello and introduce yourself
@fse_bec welcome to the forums, and it’s very generous ...
By Mars , 3 days ago
-
RE: Meter Readings - What are theses meters telling me?
@transparent Hi, I am the landlord of the property, we ...
By Potatoman , 3 days ago
-
RE: Octopus (the grid) is my battery
@andris My ‘Best Effort’ so far was on 4th. June 2023 w...
By Toodles , 4 days ago
-
Save the Energy Save the World using Daikin Altherma 3 operation mode and schedules settings.
Hello Everyone. Our Daikin Altherma 3 was set to Dome...
By Mevl , 4 days ago
-
RE: Have Octopus Energy discovered a way to Narnia?
Oh dear. Always winter never Christmas?
By Davesoa , 4 days ago
-
RE: Bivalent oil boiler system to work alongside ground or water source heat pump
I can provide a lot of detail on LED lighting. But no...
By Transparent , 4 days ago
-
RE: Making best use of Agile with a battery and ASHP
I try to ovoid doing that...
By Majordennisbloodnok , 4 days ago
Latest Topics
-
Spacing for roof fixing bolts ?
By heat-pump-newbie 10 hours ago
-
ASHP sizing - value of Heat Transfer Coefficient
By jamesw 12 hours ago
-
Incorrect Billing of Customers with a Smart Meter
By KoRWraith 3 days ago
-
Home energy storage & battery register
By Mars 3 days ago
-
Meter Readings - What are theses meters telling me?
By Potatoman 4 days ago
-
Have Octopus Energy discovered a way to Narnia?
By Davesoa 5 days ago
-
Making best use of Agile with a battery and ASHP
By jamesw 6 days ago
-
By Toodles 1 week ago