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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?


To: Tenchusatsu who wrote (1427007)12/2/2023 7:26:06 AM
From: Eric  Read Replies (2) | Respond to of 1572611
 
Heat pumps are expensive to buy and install and won't pay for themselves for many years

Wow, that's a whopper of a statement.

I ripped out the electric forced air furnace in the house I bought in 2006 and installed a 55,000 BTU (5 ton) heat pump (air conditioner) myself. Brand new, $2,500 for the outside pump and indoor ECM air handler.

The previous electric furnace had an 100 amp circuit breaker in the 200 amp service panel. Lot's of electrons used but it was installed in this house in 1978 when this home was remodeled and electrons were very very cheap before Whoops investopedia.com

When I first inspected the house before I bought it I knew I had to replace that electric furnace immediately.

After doing a little bit of metal work, wiring and pulling a vaccum and charging the system with some refrigerant it was up and running and still runs to this day with no maintenance.

Well maybe a little bit.... Blowing compressed air backwards thru the condensing, evaporator fins on the outside scroll compressor unit every few years to get rid of fir tree needles. The house is surrounded by 120 ft tall Douglas fir trees.

So how could I do it?

I used to be an auto mechanic and worked my way thru college in the early 70's and the old owner of the full service garage I worked at taught me how to recharge air conditioners in cars.

Very simple stuff. Extremely simple stuff!

Sounds like you have never worked in HVAC. There are millions and millons of heat pumps (air conditioners) in operation around the world today.

My favorites today are mini splits with inverter drive scroll compressors. Variable speed and very very efficient.

Gas laws T

Just simple physics to move heat to where I want it. And reject it when it's hot.

Your refrigerator is a heat pump operating in reverse.

Something my house heat pump does with the flick of a switch as it reverses the refrigerant flow (solenoid valve) to cool my house in the summertime.

That 100 amp circuit breaker became 50 amps. Actual RLA (running load amps) about 33. Less than one third the original consumption of electrical power of that old electric furnace.

No pollution, no fossil fuels at this house.

They may also have reliability issues

I could not disagree more.

Today's heatpumps (air conditioners) are very, very reliable.



To: Tenchusatsu who wrote (1427007)1/13/2024 6:34:36 PM
From: Maple MAGA 2 Recommendations

Recommended By
longz
Mick Mørmøny

  Read Replies (1) | Respond to of 1572611
 
Do I still believe heat pumps and more energy-efficient appliances are the future? Yes I do.

Where I am is -55 and a heat pump would be a giant fail. I have two floors turned on, the garage floor turned off, two big electric space heaters between the garage and house walk-way and a wood stove going.