Showing posts with label minisplit. Show all posts
Showing posts with label minisplit. Show all posts

Saturday, December 31, 2022

3 Month review of the heat pump

 

It's New Years Eve and I've now had three months of electric bills with the heat pump. Remember I'm heating around 950 square feet with a Fujitsu Halcyon- an 18,000 BTU mini-split for cold climates.

So I'm going to offer my last three months of electric bills.  My normal electric bill is around $50. (I don't use much juice I guess. No large TV or stereo, no cable modem or TV controller, I never use the stove - i'm a microwave, rice-cooker person.)  So I'm figuring any amount in excess of $50, we can chalk up to the heat pump.

The first month hardly counts as it was early fall: the bill for September,-October, (mostly milder weather this year) was $67. I ran the thing constantly as the advice was to set it and forget it so that's what I did.... So $17 for a little heat.

For October-November, a colder time at the end, my bill was $102.  So $52 for heat. Not bad.

November-December had some really cold spells. My bill was $202. So $152 for heat. I would have had an oil delivery by now. So $152 compared to $400-$945 for a load of #2 heating oil, depending on the price of oil.  

UPDATE: Feb 6, 2023 - I now have the Dec-Jan bill also a bit higher but still better than a tank of oil - $272 minus the baseline $50 so $222 for heat. 

(I have water filled heat pipes in three rooms not heated by the mini-split. If temps are freezing, say in the teens for several days straight - I am sporadically running a electric space heater on low in two rooms to keep those rooms about 50  degrees. The cost of running them is included in the electric bill.  For three days when temps were in the single digits, I ran the furnace over night - for just for three days to warm up that unused space so the pipes don't freeze. 

So far so good. I still have most of the oil delivered here in March at an exorbitant price. (I have hot water off the furnace. Dont use much of that either I guess!)  The electric company will up rates in January. We'll see how that pans out. :)


Wednesday, October 19, 2022

Heat Pumps - a gentle, steady warmth


An air-to-air, ductless minisplit heat pump is a kind of sneaky device. 

It works very quietly extracting little bits of heat from the cold air outside and adding them to the inside air.  And quietly, gradually, without out fanfare or glare or anything burning or glowing - your house is warm - and it stays warm too.  All at 3 times the efficiency of "resistance" heaters.

Conventional thought says you pull your chair up to a heater, warm your hands on it.  But new-fangled air-to-air heat pumps really aren't like that. At any given moment the indoor fan might be pushing out a sort of lukewarm air, occasionally warmer - but nothing like a wood stove or an infared heater. Yet your home is quietly warm. Very strange.

Pictured above at right, is the outside unit - a Fujitsu Halcyon Inverter installed a month ago. This heat pump installation is designed to heat the areas I actually live in - a core area of bedroom, kitchen, dining room, living room. And as it gets colder its proving its worth. I'm waiting for the first month's electric bill. (This time last year I was heating with electric space heaters instead of using the furnace.) 

And I will be quite happy not to buy more #2 heating oil for a while.  Instead of six tankfuls a season I'm hoping the full tank I have (delivered in MARCH when I didnt need it and when prices were skyhigh) will last a lot longer. I  will not turn on the regular heat until it's really frigid outside, to keep the pipes in the unused rooms here from freezing....