Consignment Machinery

Two Bit da Vinci says:

Check out Lomi: https://links.pela.earth/rickyapril
1st Heat Pump Vid: https://youtu.be/moQapzjjmQM

TheGaussFan says:

I put a heatpump on my pool that lasted about 7 years before failing. Every two years I had to replace a huge plastic insulating pool blanket that couldn't take the Arizona sun. Those huge sheets are still slowly breaking down in a landfill somwhere, because my city doesnt really recycle the plastics it picks up in the special bins. The blanket wound onto a huge roller that was difficult to store in the off season. If wound up wet and stored it would mildew. I didn't replace it when it failed because it had been so much trouble.

Wierzbik says:

Nope, heat pumps in dryers or modern no-frost fridges are being shoved into customers face left and right because they are very hard or impossible to repair once gas leakage will occur, and thickness of copper leads filled with gas is designed to crack right after 2 year warranty period. Finding and sealing such leakage is impossible because 99% of the time it's microscopic and it's like looking for a needle in a haystack. It's not the future, it's anti consumerism, but i guess it's shiny so only engineers can see through that smoke and mirrors. Let's not even start about modern gas like R1234yf which will kill you once inhaled by accident apart from being highly flammable.

Eddie Gardner says:

Ricky, this does not compute. The COP for a heat pump with an air-source heat exchanger outdoors is NOT anywhere near 5 when it is really cold outside, and the heat exchanger will ice up, because it would have to operate well below ambient air temperature to exchange heat, freezing moisture in the air. This is why heat pumps have resistance heaters in the air handler to provide heat when it is too cold for the heat pump to produce enough heat, or to defrost the outdoor coils after they ice up. Similarly, when used to air condition in Summer, it has to reject heat to already hot air, which reduces the COP similarly when you need it the most on a hot day. What DOES work is a GROUND-SOURCE heat pump system, where the heat exchanger is buried underground where year-round temperatures hover closer to 70 degrees. In this case, the COP remains at 5–7 constantly, whether heating or cooling the house, because the target temperature for the conditioned heating/cooling zone is almost the same as the ground source temperature, and the supply of heat or “cold” is immense in moist buried soil regardless of outside air temperature fluctuations.

Anthony Le says:

Another thought: waste grey water still has a lot of waste heat that could be extracted before dumping the rest of the water to the yard. Can that be used to heat water?

Harry Spence says:

I think this great recommendation may only work for mild climates (40F-90F). I have lived many places north and south and they seem useless below 25F you still have to have a heater. I live in Oklahoma now and two years ago it was -12F with a -27F wind chill at that temp you and your whole house would be frozen solid without the heater. The manufacturer recommendation's for BTU tend to be low so you get those savings they promise, this means in Oklahoma summer at 110F outside it's 95F inside.

Nicolae Crefelean says:

3:32 🤣 What? F degrees are better because 30s=freezing, 40s=cold, 50s=brisk, etc? Temperature perception is different, then humidity also plays a role in this perception. How about using measuring units that don't rely on such arbitrary things? 0°C = water freezing point, 100°C = water boiling point. Easy to remember, right?

Check out how 0°F was originally defined, because it would be challenging even for a scientist to remember the specific mixture used early on. Now try to convert F to/from C or K (the SI base unit of temperature) and remember that formula involving both multiplication and division. Converting C to/from K is just addition or subtraction of a constant number. Now remember how NASA blew up the Mars Climate Orbiter because some people simply cannot be bothered to use the metric system. Keeping the imperial system makes no sense. It needlessly complicates a lot of stuff for a lot of people.

siral2000 says:

If you live in a mostly cold climate heat pump water heater is not efficient since you'll have to heat the house more to make up for the cold it produces. Effectively you are heating the water with the same thing you are heating your house with, PLUS what energy the pump uses. If you could have a straight electric heat mode for winter it might be worth it.

Gregory Stetkis says:

Soon as you said climate change ,. Im out . you people push communism any way you can .you want commy soo bad try moving somewhere already has it

Michael Seto says:

Imperial measurements are dumb. Get with the rest of the world.

Ted Toal says:

If a heat pump clothes dryer does not need outside ventilation, it still must have to cycle air through the dryer to eliminate the water vapor that evaporates, right? So is that just vented into the room, and what prevents the room from filling up with a lot of lint? I’ve heard that the biggest source of plastic contamination is dryer vents, which spew microscopic synthetic fibers all over the place.