Undersized heat pump?

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Undersized heat pump?

Posted On: August 28, 2023

Undersized heat pump?

Our previous house was a 1968 split level 1600 total sq feet with basement and we had a 13 seer carrier ac 2 to worked well.


We also had new triple pane windows and white exterior.


Our new house is a bungalow old windows and brown exterior so may absorb more heat.


1360 sq feet main floor and 2400 around total with basement.


Just installed a 2 ton 18 seer carrier heat pump 38muraq also rated 24kbtu.


Yesterday it didn't seem to be keeping up but wasn't home a lot of paying to much attention.


Yesterday was around 25-26 Celsius and today is going to get to 27 Celsius.


Around 11 am it was 21.


5 In the house and we were cleaning so feeling hot so I turned it to 21 it was also only 23c outside.


By 1pm it hadn't stopped running and it was now 22 and 25c outside.


I went to do some running around and now it's still 22 set to 21 and 26 c outside.


Only the second day using it but seems to be struggling.


We are planning to get new windows by next summer but wondering if it should have been sized up?


Any thoughts?


Question from user Twitchy15 at heatpumps at reddit.


Answer:


You need 3-4 ton AC for that size.


Answer from user Force7667 at heatpumps at reddit.



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