Heat Pump myths busted! Mike Holmes explains

Mike Holmes explains:

👉Are Heat Pumps Energy Efficient?
👉Heat Pumps Are Only For Heating, Not Cooling?
👉Can A Heat Pump Replace A Furnace?

#HolmesonHomes #heatpump #heatpumps #bosch #boschhome #askmike #hvac

[NegativeROG]

Hi, Mike! I haven't seen you in probably 10 years, and you look today like you did then- you've got some good genes.
I miss Holmes on Homes, that was such a great show.
You are one of the guys that taught me about integrity- something I've carried with me through running my own business for awhile, and in my personal life... Thank you!

[guytech]

Bosch Heat Pump Commerical.

Heat pumps cost more than NatGas Condensing boilers to operate. A lot of Cool temp heat pumps either reduce heat flow (ie btu\hr) at low temps. or use an electric resistive heating element (very inefficient). Another issue with heat pump is cold weather is the buildup of ice on the coils causing the to freeze up. To address this problem, the heat pump is operated in reverse, dumping heat into the coils to melt the frost off, but this costs you money as your basically heating the outdoors in winter.

Note Heat Pump companies are trying to dump there old R410A systems which is banned on Jan 1 2025. Unless it R-454B. Note that R-32 is banned in the EU & will probably get banned in North America in a few years. The other option in R-290 (propane) but is flammable & has a risk of causing a fire. Also note the cost of R454B is about twice the cost of R410 at about $25/lb for R454B.

if you need a new system make sure it R454B (or R-32 but R-32 may be phased out in a couple of years). Don't get stuck with a unit that you cannot get replacement refrigerant in the future!

[sctexan]

Mini splits or central units: What's your opinion?

[justinbrowns]

Thanks Mike...now the question many homes have a 100 amp panel in them. Then you also have the garage which would be used to charge 1 or two vehicles.... So what should you be looking at instead of a 100 amp panel? Would the 100 amp panel need upgrading also? The cost of upgrading in Calgary is like 15-20, 000. Please give me the run down and Thanks

[maxthemagition]

I do not believe it!
A very easy way to establish the facts and check the efficiency of your home....
Step a cold day or night and your house is nice and warm, take a note of the temperature outside and inside your house and then switch your heating off whatever it is.
Step hours later take note of the temperature outside and inside your house and then switch your heating back on. This test checks how well your house is keeping the heat.
Srep how long your heating takes to get back to the start of step one....This checks how good your heating is in heating your house.
Step meter readings of the source of your energy before and after the tests....This tells you how much it costs to heat your house given the required inside temperature and the outside temperature.
Surely nothing could be simpler?

I did the test for my house and I was very happy with the results and I have gas

First my home did not drop in temperature very much over the 24hrs. (Delighted)
Second the temperature returned to a comfortable level within 1 hour. (delighted).
The cost was minimal as I only used the gas for less than 1 hour intermittently as the gos boiler switched off and on several time whilst it was heating the house.

I'm sticking with Gas thank you very much!

[danlev]

Heat pumps are too loud to be used in residential areas. I will be applying for medical assisted dying in the future if all homes have these noise makers installed.

[RodneySueFarrell]

I had heat pumps 20yrs ago and was not impressed by it's abilities in temp above 100 and below 35 and it seems these new one's still have this issue!

[SonnyPruitt-qs]

My Rheem HVAC system is 19 years old and running fine, my parents unit is 34 years old and runs fine...why would I want to spend 10k-15k every 15 years on a heat pump?

[justinbrowns]

I guess Mike does not answer questions... That is not good. How can you believe this guy!

[rcinfla]

The colder it gets outside the greater the compressor compression ratio required. BTU's transferred is amount of refrigerant mass flow rate which is more difficult to achieve when required compression ratio is higher. For practical design this usually means a compressor capable of higher rpms to get the required mass flow at high compression ratio at cold outside temp.

Compressor is doing more work under these conditions so electrical consumption gets greater with CoP of around 2.0 to slightly less. Still better than electric heat strips.

At cold outside temps, Mitsubishi Hyper-heat mini-splits' compressors spin up to almost 7000 rpms at very cold outside temps. They sound like a jet engine.

[SonnyPruitt-qs]

These HVAC companies are really pushing the heat pumps and I would say it's not because they are so good but because they cost the home owner so much and more profits for the HVAC companies for parts, installation and service calls.

[legostud]

I’d love to switch to a heat pump, but the cost is too high at this point in time, because my house has cast iron radiators. Split units would be cheap to install, but I don’t want to run pipes on the exterior of my house and friends with them complain about the higher electricity bills vs natural gas bills here in the US.

Ideally, I’d go with a geo thermal system and replace the cast iron with aluminum radiators, but again these units are too expensive even with US cash incentives. $30k after major discounts vs $15k.

The gas boiler is that last thing in my life the uses fossil fuels. I’ve gone green electric for everything else, but I cannot get to 100% green.

[flhtru]

Junk, I’ve been in the phoenix valley when it got cold, that goodness for electric baseboard heat. The good old heat pump couldn’t keep up so imagine in the north and running a compressor 24/7 to get a small amount of heat.
No drinking from the koolaid for me.