heat pumps
Printed From: OHbaby!
Category: General Chat
Forum Name: General Chat
Forum Description: For mums, dads, parents-to-be, grandparents, friends -- you name it! And you name the topic you want to chat about!
URL: https://www.ohbaby.co.nz/forum/forum_posts.asp?TID=34103
Printed Date: 26 August 2025 at 3:22am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: heat pumps
Posted By: blossombaby
Subject: heat pumps
Date Posted: 16 June 2010 at 9:42pm
|
we have been hearing mixed messages on which is the better thing to do
A) leave it on 24/7 turning up and down when needed B) Turn it on and off eg On in morning off when go to work back on after work and off when go to bed. what do you do?? im interested in both the best $$ and also in terms off keeping house warm and how long they take to heat type thing?? Have never had one before so its all new to us! |
Replies:
Posted By: RedHeadDuck
Date Posted: 16 June 2010 at 9:49pm
|
DH (Mr Electrician) says:
Leave it on. Turn it down to about 16 (or lowest setting) when you go away. Make sure its on heat only (not automatic-otherwise it'll cool to 16 degrees if it gets hotter). When you come home, turn it up to what you want (say 22 or 23 degrees?) and give it time to ramp up. Don't keep turning it up (eg after 2 mins its still not working so you turn it up to 32 degrees) as it'll just suck up the power, trying to get hotter faster. But still not do it any faster than when you first turned it up. Just like any heating thing, they take a few minutes to suck in the air and heat it and push it through. Hope that helps :) |
Posted By: blossombaby
Date Posted: 16 June 2010 at 9:53pm
thanks yes thats what i thought turn it down during day when not home and back up when get home etc. have 10 weeks to sort out how to work it before baby is here! hopefully keeps us nice and snug and cosy!
|
Posted By: minik8e
Date Posted: 16 June 2010 at 10:02pm
| We have ours going 24/7 because you never know when you're going to need to be up at night either. We turn it down overnight, and then DH turns it up in the morning before he goes to work, so it has time to warm up the lounge before the girls get up. |
Posted By: Genie
Date Posted: 16 June 2010 at 10:18pm
|
Ours stays on all night, our house is old and has little insulation and on a frosty night it struggles to heat, the temp just slowly drops all night even with it running. During the day I turn it off once the house is warm enough in the morning but only if its sunny, on a rainy or cloudy day it usually gets left on. ------------- 
|
Posted By: bun_in_the_oven
Date Posted: 16 June 2010 at 11:11pm
|
do any have a thermostate or timer feature ??
we are looking at getting one in the next few weeks.... any brand/model recommendations for a large open plan lounge and dining area ?? |
Posted By: minik8e
Date Posted: 17 June 2010 at 8:34am
| They all have thermostat features (it's how they work - you set the temperature), and ours has a timer. We have a Fujitsu, which we find really good. As for the model - it's best to speak to an actual heat pump company about that because there are a few things that they take into consideration when they recommend which size to use, including the space to be heated/cooled, insulation, window space etc. We have the largest Fujitsu residential model (8kw heating) but we have a open plan house so it's heating pretty much most of the house, except one tiny room. You need to get the model right, otherwise your power bill shows how much it is working. |
Posted By: _SMS_
Date Posted: 17 June 2010 at 9:40am
|
We leave ours on all night, but turn it off during the day. Its on from 3/4pm - 9/10am then off the rest while its a bit warmer.
I left it on 24/7 last winter and found the bills were $100 darer when i did this. Our house is fully insulated though so it does keep warm enough during the day, but im not stingy with the heatpump, if im cold it will be on. I also leave it on 17/18 overnight, i find 16 to cold lol  -------------  
|
Posted By: kebakat
Date Posted: 17 June 2010 at 9:45am
|
I did a test last winter and found out that its better to turn it off cost wise.
I get up at 7ish and it stays on til about 7pm at 21 degrees usually and that adds approx $30 a month to our power bill. We did one month of turning it down during the night rather than off and found it added $50 to our power bill. Ours only takes about 10-15mins to heat the room. Ours is a fujitsu and we only got a size big enough to heat our living room (large) and dining and kitchen but realistically it heats the whole house if I leave the hall door open. |
Posted By: clover
Date Posted: 17 June 2010 at 12:24pm
|
Ours are on 4am - 6.30am (when we leave, if I was at home I'd probably leave it till 9am), then on again 3/4pm - 9pm.
Leaving them on 24/7 gives you a nice toasty house but a nice big power bill too. We use the heatpumps (we have two, one in the hallway and one in the lounge) during the week when we work and our fireplace on the weekends, the fire gives off a much better heat and warms the house so much better. ------------- http://lilypie.com"> 
|
Posted By: cole88
Date Posted: 21 May 2012 at 9:49am
|
has anybody done a test to this theory? id really love to no as during winter often have on most days morning to night but am to scared of giant power bill if just turn it down at bed time.... our power bill is only 230 highest mid winter doing turning it off at night time.... ------------- http://lilypie.com"> 
http://pregnancy.baby-gaga.com/"> 
|
Posted By: kernowexile
Date Posted: 21 May 2012 at 11:17am
|
It totally depends on your heatpump. In our old house we had a Daikin where we could set the temperature at about 13deg for overnight and it would keep the chill off and then crank it up when we got up in the morning. That way we never needed the heatpump above about 18deg as the room would be heated from cold.
In our new house the heatpump (fujitsu) only goes down to 16deg and this ends up being way too hot as the pump isn't as sophisticated (and is older). We call it our jet engine!! Plus the new house is sunnier and we are slowly insulating all the walls. I think our worst bills in either house were about $300 a month in the winter. ------------- http://lilypie.com"> 
|