Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Auxiliary Heating
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

Auxiliary Heating

 
Air Source Heat Pumps (ASHPs)
Last Post by AllyFish 3 years ago
3 Posts
3 Users
0 Reactions
1,697 Views
RSS
 prjohn
(@prjohn)
Estimable Member Member
Joined: 5 years ago
Posts: 125
Topic starter 03/08/2023 12:40 pm   [#1033]

Do heat pumps have auxiliary heating, for example a separate in built heater to heat the home direct?



   
Quote
Topic Tags
Auxiliary Heating efficiency
 Fazel
(@fazel)
Estimable Member Member
Joined: 3 years ago
Posts: 124
03/08/2023 12:50 pm  

Some do, some don't, some can control any external auxiliary heating through a relay.



   
ReplyQuote
 AllyFish
(@allyfish)
Prominent Member Contributor
Joined: 4 years ago
Posts: 520
07/08/2023 7:53 am  

My Grant has an auxiliary output contact, which is used to control a separate 3kW immersion heater via a relay. It's a back-up heater, supplementary heater, or defrost assist, dependent on how you configure it. Direct electric is power hungry, so I have it disabled. In the depths of winter 3kW into a 22radiator system isn't doing anything as a back-up or supplementary heat source, so we would light the log burner!

It could be used to power a larger fired heater source, but you need to be very careful with flow and return temperatures in that case especially if the ASHP unit is in circuit. Most hybrid systems work as either a ASHP or fired boiler, dependent on ambient temperature and which is most economical to run, but not a combination of both.



   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Related Topics
Topic Tags:  Auxiliary (1) , Heating (3) , efficiency (14) ,
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Members Online

Click to access the login or register cheese
Protected By
Shield Security PRO