| 1 | Had heatpump going for 11hrs so far today and only used 2.1kw that's 0.191kw per hour on a 9kw heating 8 kw cooling Panasonic heat pump.
Heating 150m3 area
Temp inside 20c Edited by leson at 7:06 pm, Sun 17 Oct leson - 2021-10-17 19:05:00 |
| 2 | we have a 22kw hp that heats 250 squares, costs very little, its on 24/7 keeping house at 20c. The spa pool 3kw, seems to cost alot though, so that fad may wane. gabbysnana - 2021-10-17 19:23:00 |
| 3 | leson wrote:
Had heatpump going for 11hrs so far today and only used 2.1kw that's 0.191kw per hour on a 9kw heating 8 kw cooling Panasonic heat pump.
Heating 150m3 area
Temp inside 20c
its not really an indication of efficiency unless you know how cold it was outside and how good the insulation of the house is.
the other factor is once you get the house warm it takes very little to keep it there. if your having to heat it up from cold, it takes a lot more. tweake - 2021-10-17 19:37:00 |
| 4 | tweake wrote:
its not really an indication of efficiency unless you know how cold it was outside and how good the insulation of the house is.
the other factor is once you get the house warm it takes very little to keep it there. if your having to heat it up from cold, it takes a lot more.
Yeah mate it's efficient really efficient Edited by leson at 7:41 pm, Sun 17 Oct leson - 2021-10-17 19:39:00 |
| 5 | gabbysnana wrote:
we have a 22kw hp that heats 250 squares, costs very little, its on 24/7 keeping house at 20c. The spa pool 3kw, seems to cost alot though, so that fad may wane.
Thats some juice leson - 2021-10-17 19:40:00 |
| 6 | leson wrote:
Yeah mate it's efficient really efficient
not really.
if outside temp was 18c then its rather poor. tweake - 2021-10-17 19:49:00 |
| 7 | tweake wrote:
not really.
if outside temp was 18c then its rather poor.
Mate you obviously know nothing about heatpumps
Or power consumption.
But I'll let you believe what you want. leson - 2021-10-17 19:54:00 |
| 8 | tweake wrote:
not really.
if outside temp was 18c then its rather poor. My installer told me that. The thing is to get the excess moisture down and they become even more efficient. I rarely use the cool function as it is not needed. joanie04 - 2021-10-17 21:29:00 |
| 9 | joanie04 wrote:
My installer told me that. The thing is to get the excess moisture down and they become even more efficient. I rarely use the cool function as it is not needed.
Heatpumps automatically take the moisture out of the room that's why they have a hose that goes from the unit to outside to drain. leson - 2021-10-18 05:42:00 |
| 10 | leson wrote:
Heatpumps automatically take the moisture out of the room that's why they have a hose that goes from the unit to outside to drain. Heatpumps only dehumidify when in cooling mode |
| 11 | loose.unit8 wrote:
Heatpumps only dehumidify when in cooling mode
Negative when you heat a room you dry a room with a heatpump leson - 2021-10-18 09:05:00 |
| 12 | You allow the air to hold more moisture, thus "drying" the room. The moisture will come back out again when the room cools down. kerryalan - 2021-10-18 09:54:00 |
| 13 | leson wrote:
Mate you obviously know nothing about heatpumps
Or power consumption.
But I'll let you believe what you want.
my heat pump is hyper efficient, it was on all day yesterday and used 0.0kwh.
maybe the 18 degree night, 20+ degree day and sunshine had something to with that,.........but still its super duper hyper efficient heat pump. best you get, buy now. tweake - 2021-10-18 12:47:00 |
| 14 | tweake wrote:
my heat pump is hyper efficient, it was on all day yesterday and used 0.0kwh.
maybe the 18 degree night, 20+ degree day and sunshine had something to with that,.........but still its super duper hyper efficient heat pump. best you get, buy now.
Cool story bro leson - 2021-10-18 13:26:00 |
| 15 | leson wrote:
Had heatpump going for 11hrs so far today and only used 2.1kw that's 0.191kw per hour on a 9kw heating 8 kw cooling Panasonic heat pump.
Heating 150m3 area
Temp inside 20c
No it is not really efficient in fact you are 6kw under what is efficient for the sized area you are heating, andrewcg53 - 2021-10-18 22:46:00 |
| 16 | andrewcg53 wrote:
No it is not really efficient in fact you are 6kw under what is efficient for the sized area you are heating, wow I can see why the mb is getting shut down with people like yourself spread so much misinformation.
I use to install heatpumps so I know what I'm talking about and to make such a ridiculous statement I really can't understand why is it to argue for the sake of arguing? It just amazes me. Well done trade me for shutting down mb it will protect people from the likes of Andrew spreading false statements.
Now I could go into formulas with you but it's just not worth my time. leson - 2021-10-19 04:18:00 |
| 17 | Hey leson what brand is it? I've got a couple of Hitachis (I know - they were on trade special) but they're a bit noisy, especially the smaller one so thinking about swapping them out. Also what sort of dB is it while running? hers.nz - 2021-10-19 05:20:00 |
| 18 | hers.nz wrote:
Hey leson what brand is it? I've got a couple of Hitachis (I know - they were on trade special) but they're a bit noisy, especially the smaller one so thinking about swapping them out. Also what sort of dB is it while running?
HI they are Panasonic they can be noisy getting up to temp but I put it in quiet mode which fixes this but it is the big vkr80. If you go to the Panasonic site you will be able to download the spec and the dB.
This winter our power bills were under $60 but unfortunately we use gas for hot water and the gas bill can be more than our power the way the gas companies are charging.
If the heatpump is small for the area it will work harder and make more noise.
Short cycling is a myth I remember being told if it's oversized it will use more power by switching on and off this is not true with Panasonic anyway.
But remember that quiet button that makes a difference. leson - 2021-10-19 07:33:00 |
| 19 | leson wrote:
wow I can see why the mb is getting shut down with people like yourself spread so much misinformation.
I use to install heatpumps so I know what I'm talking about and to make such a ridiculous statement I really can't understand why is it to argue for the sake of arguing? It just amazes me. Well done trade me for shutting down mb it will protect people from the likes of Andrew spreading false statements.
Now I could go into formulas with you but it's just not worth my time.
LOL it is not misinformation It is 1kw/10m2(add 10% for every degree below zero) is what is classed as efficient for heatpumps for heating unless you use a geothermal heatpump andrewcg53 - 2021-10-19 09:40:00 |
| 20 | For a Hitachi heatpump they work on 1.2kw/10m2 andrewcg53 - 2021-10-19 09:44:00 |
| 21 | leson wrote:
wow I can see why the mb is getting shut down with people like yourself spread so much misinformation.
I use to install heatpumps so I know what I'm talking about and to make such a ridiculous statement I really can't understand why is it to argue for the sake of arguing? It just amazes me. Well done trade me for shutting down mb it will protect people from the likes of Andrew spreading false statements.
Now I could go into formulas with you but it's just not worth my time. Ironic considering you've been wrong at least 3 times, and counting just in this thread. I assume you're currently stuck in the first stage of learning
https://leadershipmanagement.com.au/understanding-4-stages-l
earning/ Edited by loose.unit8 at 10:00 am, Tue 19 Oct |
| 22 | By memory it was 55watt per every cubic meter for a well insulated place and 65watts for a poorly insulated place.
So if we go by Daniel's statement that I need a 15kw heatpump to heat a 150 m3 would be mad ring up any heatpump installer they will tell you the same.
If it was 150m2 with a 2.7mtr ceiling then it would be 22kw required. But I'm talking about cubic meters not square meters.
I'm also aware of the efficiency of a heatpump once it gets to 7c it starts to lose its output power.
Thats where most calculators allow the H2 effect the loss of power at 2c. Edited by leson at 10:47 am, Tue 19 Oct leson - 2021-10-19 10:39:00 |
| 23 | leson wrote:
By memory it was 55watt per every cubic meter for a well insulated place and 65watts for a poorly insulated place.
So if we go by Daniel's statement that I need a 15kw heatpump to heat a 150 m3 would be mad ring up any heatpump installer they will tell you the same.
If it was 150m2 with a 2.7mtr ceiling then it would be 22kw required. But I'm talking about cubic meters not square meters.
I'm also aware of the efficiency of a heatpump once it gets to 7c it starts to lose its output power.
Thats where most calculators allow the H2 effect the loss of power at 2c.
LOL
https://www.heatforce.co.nz/products/heat-pump-sizing-and-ho
w-choose-right-heat-pump-you/?gclid=EAIaIQobChMI9KqtgIvV8wIV
eplmAh0Z_QcTEAAYASAAEgIpXPD_BwE Edited by andrewcg53 at 12:15 pm, Tue 19 Oct andrewcg53 - 2021-10-19 12:15:00 |
| 24 | leson wrote:
I use to install heatpumps so I know what I'm talking about but every idiot under the sun installs heat pumps. its absolutely nothing to brag about.
plus no real tradie ever uses the phrase "so I know what I'm talking about". thats the domain of the hack, the hammer hand who thinks hes a builder. tweake - 2021-10-19 13:29:00 |
| 25 | Edited - Can't be bothered, lol.
Life's too short and the message boards are ending - have a great day all. Edited by desi1969 at 2:15 pm, Tue 19 Oct desi1969 - 2021-10-19 14:06:00 |
| 26 | desi1969 wrote:
Edited - Can't be bothered, lol.
Life's too short and the message boards are ending - have a great day all.
I agree people have to be so rude they can't just post a reply they have to be smart about it. leson - 2021-10-19 14:23:00 |
| 27 | andrewcg53 wrote:
LOL
https://www.heatforce.co.nz/products/heat-pump-sizing-and-ho
w-choose-right-heat-pump-you/?gclid=EAIaIQobChMI9KqtgIvV8wIV
eplmAh0Z_QcTEAAYASAAEgIpXPD_BwE
HI Andrew not sure what is so funny this is what Panasonic use as a guide to size. leson - 2021-10-19 14:24:00 |
| 28 | tweake wrote:
but every idiot under the sun installs heat pumps. its absolutely nothing to brag about.
plus no real tradie ever uses the phrase "so I know what I'm talking about". thats the domain of the hack, the hammer hand who thinks hes a builder.
here is an idea why don't you start talking to people out in your town how you speak in here it would be an interesting experiment. leson - 2021-10-19 14:27:00 |
| 29 | andrewcg53 wrote:
LOL
https://www.heatforce.co.nz/products/heat-pump-sizing-and-ho
w-choose-right-heat-pump-you/?gclid=EAIaIQobChMI9KqtgIvV8wIV
eplmAh0Z_QcTEAAYASAAEgIpXPD_BwE
It's quite easy andrew if the volume of the room is 100m3 then X that by 65 or 55 good insulation to get your required kw heatpump size so 100x55=5.500kw heatpump. Nothing really funny about it. leson - 2021-10-19 14:32:00 |
| 30 | leson wrote:
I agree people have to be so rude they can't just post a reply they have to be smart about it. To be honest, it's your post at #7 I find rude.
Up till then people were commenting on the topic, you commented on the person/poster. desi1969 - 2021-10-19 16:46:00 |
| 31 | leson wrote:
It's quite easy andrew if the volume of the room is 100m3 then X that by 65 or 55 good insulation to get your required kw heatpump size so 100x55=5.500kw heatpump. Nothing really funny about it.
LOL still digging your hole andrewcg53 - 2021-10-19 19:48:00 |
| 32 | leson wrote:
here is an idea why don't you start talking to people out in your town how you speak in here it would be an interesting experiment.
i usually do.
most people listen, ask good questions, have a good discussion.
a few put their noses in the air and waddle out. if they can't handle the truth thats their problem. speaking of which did i say anything untrue?
heat pump installation is now minimum wagers doing it cheap as possible.
its not really their fault, they get little to no training. they get just enough training to make them think they know what they are doing.
once you realize how little you actually know, then you really start learning your trade.
been there done that. tweake - 2021-10-19 20:14:00 |
| 33 | The member deleted this message. leson - 2021-10-19 20:22:00 |
| 34 | The member deleted this message. leson - 2021-10-19 20:24:00 |
| 35 | andrewcg53 wrote:
LOL
https://www.heatforce.co.nz/products/heat-pump-sizing-and-ho
w-choose-right-heat-pump-you/?gclid=EAIaIQobChMI9KqtgIvV8wIV
eplmAh0Z_QcTEAAYASAAEgIpXPD_BwE
Trying that basic chart 56 x 2.7mtr ceiling = 150m3 =8.3kw heatpump taking loss of efficiency at 2c my 9kw is bang on the money Edited by leson at 8:34 pm, Tue 19 Oct leson - 2021-10-19 20:33:00 |
| 36 | leson wrote:
Heatpumps automatically take the moisture out of the room that's why they have a hose that goes from the unit to outside to drain. Only in cool mode. tegretol - 2021-10-24 10:30:00 |
| 37 | who runs a heatpump (on heat) at this time of year? |
| 38 | wine-o-clock wrote:
who runs a heatpump (on heat) at this time of year?
Sorry didn't know that you determine the seasonal change from heating to cooling.
I didn't get your email sorry.
Just so I'm sure is it cooling now? leson - 2021-10-25 10:57:00 |
| 39 | tegretol wrote:
Only in cool mode.
Also in heat as the hot air drys the room
Try it put a humidity instrument in a room take a reading turn on the HP let the room warm up and take another reading and you will find it's dryer leson - 2021-10-25 11:00:00 |
