Silly defrost question
8 years ago
last modified: 8 years ago
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Silly question about zinnias.
Comments (18)You may know that they were named in honor of the German botanist Johann Gottfried Zinn. I wonder how he pronounced his name. I have imagined that it was probably zin, not zeen, which has led me to the zin pronunciation. Any German speakers out there? More "Zin" than "Zeen," in German. But what about Diervilla? To the extent that people ever speak about it at all, it seems that most people say Dye-er-VIL-a, but Merriam-Webster gives Deer-VIL-a and I have one British example of DEER-vil-a. However, it's named for a French botanist with the surname Diereville, which I would pronounce as Dee-AIR-a-vee, so maybe the pronunciation should be Dee-air-VEE-ya. BTW, the real Albany is in New York....See MoreHere's my silly question about heat mat alternatives!
Comments (15)One of my goals when designing my bottom-heating fixture was to keep operating costs low. For that reason, and to even out the heat, I decided to wire two incandescent light sockets in series. The waterbed heater sounds like a good idea, but I wonder how much electrical power it uses. I also wonder how much it costs to run the heating cable. I disagree with joezkool about the shock hazard of series-connected bulbs. First of all, you should unplug the cord when changing light bulbs. Second, if you happened to get shocked as he stated, the socketed light bulb may act as a resistance, limiting the current flow through your body. Regarding the dimmer: When you operate a dimmer at the low end of it's settings, it can be triggered off by a power surge or sag. You may wake up one cold morning and find that your plants froze from lack of heat at night. I prefer a more reliable system. With the series-connected lights there is the danger that one of the lights would burn out, and therefore the other light would not burn. However, by operating the bulbs at half-power (because they're wired in series), they will last longer than their rated life. Still, you can replace the bulbs after a given number of hours if you wish. Joezkool's suggestion of using two smaller-wattage bulbs wired normally (in parallel), is a good one. If one bulb burns out, at least the other will still provide some heat to protect your plants. All things considered, the series connected bulbs may be the cheapest to build, and more importantly, the cheapest to operate. John...See MoreDefrost cycle questions
Comments (1)I'm far from expert, but here's what I understand. Generally, the HP is reversing the cycle to defrost (i.e. running as an air conditioner for a little while). Most units will run the backup heat source (strips or gas) while defrosting in order to temper the air going through the system and out to the house. If your system is blowing cold air while defrosting, it probably isn't calling for the backup heat (and the controls may be messed up if it's defrosting so often)....See MoreHeat pump question: compressor or defrost control?
Comments (5)Trane is the same product if you have a good Trane dealer. What's "kicked the bucket" about the compressor? Locked up? Not pumping? Shorted? This isn't rocket science. All the defrost board does is pass the "turn on" signal to the compressor. Really easy to tell if that is keeping the system off. Last year I went on a call that one of 2 compressors in a high end Trane was locked up. It was til I put a high voltage wire back on the terminal it was supposed to be on. Popped right up. Thieves....See More- 8 years ago
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- 8 years agolast modified: 8 years ago
- 8 years ago
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