Forums

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

Auxiliary Heating

 
Air Source Heat Pumps (ASHPs)
Last Post by AllyFish 2 years ago
3 Posts
3 Users
0 Reactions
985 Views
RSS
 prjohn
(@prjohn)
Reputable Member Member
Joined: 4 years ago
Posts: 125
Topic starter 03/08/2023 12:40 pm  

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)
Reputable Member Member
Joined: 2 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)
Noble Member Contributor
Joined: 3 years ago
Posts: 490
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 (13) ,
Share:

Join Us!

Trusted Installers

Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.

✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available

👉 Find your installer now!

Latest Posts