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Rodents! A word of warning for heat pump owners

 
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Air Source Heat Pumps (ASHPs)
Last Post by Toodles 4 days ago
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 Tim441
(@tim441)
Prominent Member Contributor
Joined: 3 years ago
Posts: 327
Topic starter 29/08/2025 7:01 am  

just thinking about how a mouse got in the hole on the bottom of heat pump. I'm guessing that leaves building up on the drip tray helped give it a platform to climb on? Something to keep cleared.


Listed Grade 2 building with large modern extension.
LG Therma V 16kw ASHP
Underfloor heating + Rads
8kw pv solar
3 x 8.2kw GivEnergy batteries
1 x GivEnergy Gen1 hybrid 5.0kw inverter
Manual changeover EPS
MG4 EV


   
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Toodles
 Toodles
(@toodles)
Illustrious Member Contributor
Joined: 3 years ago
Posts: 2066
29/08/2025 9:17 am  

@tim441 As an annual event, I used to record the Christmas Service for a local Private School. One Christmas week, I arrived at the chapel and started to set up all the audio equipment and then plugged into the main …. no power! Upon investigation we found the fried culprit with its’ teeth still engaged with the lead sheathing of the mains wiring. (The chapel rarely had need of electrical power as they still used candles for all ceremonies; power was run from a nearby Master’s House and I was set up in time for the proceedings.) Regards, Toodles.


Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
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 JamesPa
(@jamespa)
Illustrious Member Moderator
Joined: 2 years ago
Posts: 2815
29/08/2025 9:38 am  

Wasps caused frequent tripping of my lighting circuit a few years ago.  A fair amount of ceiling was removed to find a joint block in which several had met their maker.


4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
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 Lucia
(@lucia)
Prominent Member Member
Joined: 1 year ago
Posts: 314
02/09/2025 10:17 am  

@tim441 I will need to give some thought to protect the hole with mesh.... perhaps expanding mesh used by builders. Either galvanised or stainless

Just an fyi but steel wool washing up pads are very effective at keeping those critturs out.  This is tried and tested. I buy multi packs and pull them apart.  🐭😁



   
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Toodles
 Toodles
(@toodles)
Illustrious Member Contributor
Joined: 3 years ago
Posts: 2066
02/09/2025 2:43 pm  

@lucia One look at that protection and the rodents will make a clean getaway 😉.


Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
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