Auxiliary Heating
Do heat pumps have auxiliary heating, for example a separate in built heater to heat the home direct?
Some do, some don't, some can control any external auxiliary heating through a relay.
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.
-
Have Consumers Been Lied to About the Efficiency of Heat Pumps Made in China?
2 months ago
-
Ecodan consuming 100kwh per day in new build!!!
3 months ago
-
Help with understanding my Mitsubishi Ecodan air source heat pump
6 months ago
-
Efficiency Concerns on newly installed Mitsubishi Ecodan 8.5kW
6 months ago
-
Running my new Nibe ASHP efficiently
8 months ago
- 26 Forums
- 2,208 Topics
- 48.7 K Posts
- 144 Online
- 5,868 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Renewables & Heat Pumps in the News
@transparent thanks I’ve learned a lot from your post a...
By Judith , 17 minutes ago
-
@ashp-bobba Thanks. I'll be interested to find out why ...
By bontwoody , 39 minutes ago
-
RE: Bizarre Retro-fixes by AAC
@editor So the risk was an uncontrolled electrical elem...
By ASHP-BOBBA , 1 hour ago
-
RE: Daikin 9kW to 8kW Swap Offer from Octopus
The ACH can actually make a huge difference. My heat l...
By Matban , 2 hours ago
-
Can that be interrogated using Modbus? Over an RS485 ...
By Transparent , 4 hours ago
-
If you've never played (or heard of) Pirate Fluxx, then...
By Transparent , 4 hours ago
-
RE: Samsung Heat pump with Yonos Pico circulating pump running all the time
Doesn't the Joule preplumbed cylinder include a buffer?
By JamesPa , 6 hours ago
-
RE: Mitsubishi Ecodan F8 error
Better than an early Windows/DOS error 'Faulty keyboard...
By JamesPa , 13 hours ago
-
I can now, I done an automation in Home Assist...
By DREI , 13 hours ago
-
RE: Bosch CS5800i 5kW - Experience So Far
What a difference a pump makes. We don't have OpenEne...
By Steelbadger , 13 hours ago
-
RE: Inventor (Midea) Heat Pump short cycling advice
I installed the 80L tank (volumizer) things got better ...
By immunity , 18 hours ago
-
RE: Testing new controls/monitoring for Midea Clone ASHP
@papahuhu at the end of the day if you are happy with h...
By benson , 1 day ago
-
RE: Can you recommend a Mitsubishi service engineer in the Rochdale area?
@dgclimatecontrol We'll all need annual servicing. How...
By Suzy-shadow , 1 day ago
-
RE: Octopus tariffs - a quick comparison
Does indeed need checking, @tim441. Neither Homely ...
By Majordennisbloodnok , 1 day ago
-
RE: How not to install a heat pump
Delighted to hear that the buffer has been replumbed as...
By JamesPa , 1 day ago
-
-
RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
@davidnolan22 So far as I can tell from the 'other p...
By JamesPa , 2 days ago
-
RE: 5 Star Service from Havenwise
I keep getting havenwise ads on my Facebook feed, so cl...
By benson , 2 days ago