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| Thread ID: 139562 | 2015-05-24 07:17:00 | Heat Pump? | DakotaNZ (17161) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1401251 | 2015-05-24 07:17:00 | We have a Fujitsu heat pump with quiet mode. My question is does the quiet mode work as well as the low or medium fan speed or is it really just a gimmick and a waste of time that doesn't have enough oomph to deliver good heat? | DakotaNZ (17161) | ||
| 1401252 | 2015-05-24 07:29:00 | From Their FAQ Fujitsu technology also developed a "quiet mode" on many models, which means that once the room has reached it's desired temperature, the sound is usually less than the sound of a soft whisper ------ once he room is up to temperature the unit should be able to maintain that on quiet mode (if available). 30 Dba is considered to be a whisper so quieter than that in quiet mode is good. In other words it turns its self down until the temp in the room starts to drop, then kicks in as normal. |
wainuitech (129) | ||
| 1401253 | 2015-05-24 08:06:00 | Seems most people have them but I am old fashioned I like a fire. It dries the clothes, heats the water, heats the house, can cook on it when the power goes off. Sex in front of a heat pump just wouldn't cut the mustard. | prefect (6291) | ||
| 1401254 | 2015-05-24 08:43:00 | When we use our we just set the fan to auto, setting to heat and the temp, but like prefect much prefer the fire. Even cooked some soup stock on there | plod (107) | ||
| 1401255 | 2015-05-24 08:48:00 | My *guess* is that quiet mode is a less aggressive way of keeping to the desired temperature, allowing for more overshoot and undershoot but keeping the fan speed more even Suppose you are trying to get your car up to speed in a 50 kph zone. By staying in 2nd gear you can get to 50 quickly but as soon as the car goes over and you take your foot off, the speed quickly drops. Accurate but noisy Whereas if you were in 4th gear all along, the car would reach the desired speed more slowly and would not slow down so quickly when you take your foot of. That would be quiet mode... Just my guess |
BBCmicro (15761) | ||
| 1401256 | 2015-05-24 10:10:00 | I have a Fujitsu heat pump which if left on Auto slows down until the temperature drops, it is very accurate. I usually switch it to medium once it has warmed the room because I find the constant raising and lowering of speed more irritating than the fixed medium speed. These later heat pumps are very accurate because the fan keeps going all the time. With early ones the fan stopped when the set temperature had been reached, but because hot air rises it would take longer to switch on again. | mzee (3324) | ||
| 1401257 | 2015-05-24 11:40:00 | Sex in front of a heat pump just wouldn't cut the mustard. Can confirm, it's not quite as romantic, but still 'works' just the same ;) |
Chilling_Silence (9) | ||
| 1401258 | 2015-05-24 20:19:00 | Seems most people have them but I am old fashioned I like a fire . It dries the clothes, heats the water, heats the house, can cook on it when the power goes off . I agree, and the cost - even in Auckland with expensive wood - is pretty good . Elsewhere, where wood is a s cheap as dirt, why would you want electric? From Consumer: Heat pumps are the most commonly installed form of fixed heating . But experts say many people are paying unnecessarily high bills because they aren't using them correctly . Mikael Boulic, a lecturer at the Massey University school of engineering and advanced technology, and part of the Housing and Health Research Programme, said more education was needed to help New Zealand households use their heat pumps more effectively . His studies have shown that for the first couple of months after a new heat pump is installed, households tend to get very high power bills . Boulic said this was because residents would come home to a cold house and crank up the heat pump to its highest setting . "They would set it for 29°C or 30°C, so the heat pump is running at a very high rate for a few minutes . "It then gets too hot so they shut it down instead of leaving the temperature at 18°C and waiting for it to reach that," he said . ------------------------------------------------------------------------------------- 18? Really? I'd choose the woodburner every time . |
pctek (84) | ||
| 1401259 | 2015-05-24 21:11:00 | I agree, and the cost - even in Auckland with expensive wood - is pretty good. Elsewhere, where wood is a s cheap as dirt, why would you want electric? From Consumer: Heat pumps are the most commonly installed form of fixed heating. But experts say many people are paying unnecessarily high bills because they aren't using them correctly. Mikael Boulic, a lecturer at the Massey University school of engineering and advanced technology, and part of the Housing and Health Research Programme, said more education was needed to help New Zealand households use their heat pumps more effectively. His studies have shown that for the first couple of months after a new heat pump is installed, households tend to get very high power bills. Boulic said this was because residents would come home to a cold house and crank up the heat pump to its highest setting. "They would set it for 29°C or 30°C, so the heat pump is running at a very high rate for a few minutes. "It then gets too hot so they shut it down instead of leaving the temperature at 18°C and waiting for it to reach that," he said. ------------------------------------------------------------------------------------- 18? Really? I'd choose the woodburner every time. Also from experience setting it to high it never gets to that temp so is always going flat stick. When we were renting landlord put an underpowered unit, utterly useless |
plod (107) | ||
| 1401260 | 2015-05-24 21:36:00 | Consumer and other gov't bodies of that ilk (like the energy advisory folk) are prone to be unable to see the woods for the trees . Heat pumps give ~3 times the heat of any other purely electric heating per kwh consumed . If the user can't operate them correctly it is purely the ignorance of the operator to blame . A car may well be perfectly capable of cruising at 150 kph, doesn't make it a good cruise speed setting in a parking building . (Sex in front of an open fire may be better than in front of a heat pump . Behind the heat source it's a different story, and on top of . . . A spark on the carpet may add to the thrill of the game for one party, the other will henceforth not hear a word spoken against heatpumps ;)) |
R2x1 (4628) | ||
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