Our heat pump water heater is located in a two car garage out in the PNW. The HP dryer is also located in the garage. Between the waste heat from the dryer (ventless), charging two EVs, chest freezer, and remaining electronics - the garage temperature averages significantly higher over ambient temperatures. Running the water heater in HP mode returns the most favorable results while acting as a dehumidifier within what would normally be a damp garage with these wet winters.

Best water heater heat pumps are the SPLIT ones (these with exterior unit). Even the best heat pumps for entire the home / hvac are the SPLIT ones (not single block, but with the external and internal unit).

My electric hot water heater is in a furnace closet, ducting is an issue as per Rheem specs and sound. Have called about 5 plus places, no one will install one or the anti sell them or charge so much it would take 5-10 years to pay off. For those in cold climates wanting the heat pump outside the envelope there is the SANCO2 but it is so expensive it would take a lot to get that back unless you where building new / have very high current costs.

You so want to look at what Octopus Energy have been doing in the UK with battery and solar. For heat pumps have a look at Heat geeks if you are having problems with heat pumps, it's normally a poor install that causes increased costs for heating with a heatpump. Heatpump have been used in sweeden outside for years....

An energy balance would not agree with the comment that it is lower cost to heat part of the water with straight electric 1:1 and the other portion at COP of 3. If you told me the water was heated with solar panels and then fed to the heat pump, that would be a different discussion. Check your thermo and physic books. Mech PE

One of the reasons for the permitting process is that the neighborhood grid is only rated to take so much power. They have to make sure that your house and your neighbors homes don’t put out more than the local circuit can take.

I'd be interesting to pair the cooling effect of the HP water heater with your server room. Rather than having to shift the heating burden onto your HVAC system, they would have a more symbiotic relationship. Though downside is you would have to have HVAC there regardless for when the server heat outpaces the cooling of the HP water heater. Maybe per room HVAC is the solution?

With combative suppliers, it's almost worth going off-grid even with a diesel backup generator.

I'm *technically* not going off-grid, but my solar/storage system is designed to work off it entirely… the grid is my backup.

I think that would be neat to listen to your video in AI Matt voice. As far as re-recording it would probably end up degraded like re-recording on VHS the same content time and again over and over. But maybe not. It is an interesting idea.

I live in Idaho. I have have a Rheem 60 gallon heat pump installed in my garage. It works great! I only use it in heat pump mode. I don't use it ENERGY SAVER mode because I am off grid. two NOT turn on during the night but it only runs during sunlight hours.

Perhaps, the solution to a hybrid system is if the geothermal heat pump water is circulated through the cooler circuit of the hot water heat pump for domestic use, i.e a two stage system using water to water.

Re: your distribution utility dragging its feel on battery permitting (16:50) This is a well documented problem. Distribution utilities earn a profit by building new grid infrastructure. There's nothing wrong with that of course, it's just that the incentive system works against them being eager to do things to improve the utilization of the existing infrastructure like adding .batteries. They'd rather see peak utilization continue to increase so they can justify building new infrastructure. This incentive problem shows up even more with VPPs. Generally, regulators have to force distribution utilities to embrace VPPs. The reason is that VPPs have the potential to dramatically increase the average utilization of distribution infrastructure by shaving peak loads and smoothing out net load. If VPPs live up to their potential, they could save ratepayers a ton of money with much greater use of the infrastructure we already have, even as we add tons of new grid load from EVs and heat pumps. The trouble is that all this ratepayer savings will mean much lower utility profits. The trick will be to find a way to get the incentives right, so utilities get on board with the new tech rather than fighting it.

What a wild inside joke for our community to have. I will always think of that when the Hindenburg gets brought up now and (like Matt every time it was mentioned in this video) I will have to stifle laughter

My heatpump switches between house heating and water heating. So I can pull all the energy from outside. I live in cold climate (Austria) and the heatpump can heat above 70°C/158°F with even COP3-4 at high output temperature. With us as family using up to 18kWh warm water per day, that is a lot of energy if I pulled it from the house instead of the outside. That is the energy consumed by my Tesla to drive 100km/62miles. Sure on the electricity side it is way less due to the COP, but anyways. I would pump heat only in series from one pump to the next if there is no other choice. Cheers from the alps, love your content!

I work from home and getting solar with battery means power outages don't affect my work. Such an advantage!

Here in Central CT if you are on Grid you are not allowed to go off Grid.

Thank you for the updated charts moving therms to KWH. I would like to suggest in your future update of your system performance, when you have a level year of normal usage data; please give a comment about the similarity of the years compared based on heating degree days or something else relevant. This will eliminate bias if a given month or season is particularly colder or hotter than the corresponding time period of the other system in review. Thank you.

Just put the battery on charging circuit only so you don't share the battery power on the grid, so far they can't tell us what we can plug in to use.

You need to check out Oxford Energy in the UK and their relationship with solar customers.

The Heat Pump Hot Water Heater. I am talking to a plumber now about converting from oil burning furnace/hot water heater combo to a Heat Pump Hot Water Heater and converting my oil burner to just a furnace. Hearing about you having the 2 staged hot water and the other viewer having that 2 stage hot water system I am beginning to wonder if I should ask my plumber about doing something similar with ours. HPHW feeding into the Oil Burner which then goes to our taps. Yes, I will be keeping the Oil for our hot water radiator heat. Does anyone have thoughts?

I just happen to have access to a Mandarin professor. She says it’s okay, tones need work and it’s accented but not bad. Jokes flopped, buns don’t translate

Curious if you or anybody here knows about a service similar to ditto dub but that will do transcription? I'm part of a (usually) three-man podcast and we have a very good friend who is deaf and would really love to be able to include him.

Doesn't your AC unit heat your water also?

The AI translation feature might be nice and all - but worthless if it drops the puns! Also: I had to switch my whole Google account (including phone, search, ...) to English to prevent KZfaq from translating video titles to German. If they tie in audio to that as well, it might become more important.

I wonder if anyone has experience with a water heater heat pump in their basement. I would love to have one, but don't know if it would be very efficient.

I feel like I have to constantly correct issues brought up by the Texas Freeze. Look it wasn't good, the grid was underprepared for the situation but given that it was a once in many many years issue, its been overblown. I get any death is a tragedy and certainly there should be a reckoning when it comes to systemic issues that unjustly punsh those who can't prepare for it (the poor, the elderly, the young) but the official numbers are around 250 deaths in the state of Texas can be attributed to the freeze. This is a 0.1% increase in the annual death rate from 2019. And that's just based on deaths for 75+. How many more deaths are there because electricity has gone up 10% in the last few years because of the additional requirements? Heat is much more likely to be fatal here in Texas. I'm not saying that we should sacrifice those 250 for the greater good but I think this is focusing on the wrong issue here in the state of Texas.

I had to go back and rewatch part of the video to test the audio tracks.....that's AI? Oh boy...I'm assuming the next steps is the AI lip sync to match what is being said in the other languages.

Matt's skin.... 😧I was not expecting to that image, Sean!

I do not watch in my native language, because most of the content that I'm interested in is in english.

I wonder how good of a job the AI powered translation is doing, I would somewhat worry that it is misrepresenting your messages.

Wait I just checked no Hindi option for us indians? Also curious to know what's the % of viewers from India or south asia in general?

I welcome any comments that contradict what I am about to say. I enjoyed your video and I have also run the numbers here in America. Two things that bother me here concerning electric cars and hybrid hot water tanks. Lets talk about hybrid hot water tanks first, the plumbers here want to charge $8 thousand to install a heat pump hot water tank verses $2 K to install an element hot water tank. ( Where is the savings? ) ( Any government or power company credit or rebate ( or energy savings ) is gone and then some ) Just to reduce drama here, I am working on any situation that can over come this greedy infection that lives here in America. We all know there is little to no more work to install a heat pump hot water tank verses an element hot water tank. ( I get it that the cost of the hybrid will be slightly higher due to the additional heat pump on it ) Now lets talk about EV's . Do the math and you will find that above 30 cents per KWH, there is no saving in running an EV verses petrol , and yet unless you charge at home with a $20 K solar system, the price at some of these super chargers can be 40 or 50 or even 60 cents per KWH. Again, any government or power company credit, or rebate is eaten up and then some. Forget the cost saving, the brutal truth is there is none.( energy saving, yes. but cost is no ) Back to hybrid hot water tanks, I am getting another bid today and the installer has to understand I am willing to pay only $1000 more for the hybrid hot water tank or I go back to a new element hot water tank, I want to save the planet also and not pollute, but I feel backed into a corner .

“The amount of heat you are pulling out of the air is negligible” This is just wrong. First of all a large fraction of my electricity usage, maybe 50%, is my resistive water heater. It is a LOT of heat. The issue is not cost, it is CO2. I would be trading electric heat for inefficient use of my propane furnace. The electricity here in California is 50% green at least. Unless I duct the heat pump outside, I absolutely would be increasing my CO2 production by drawing the heat from propane furnace rather than resistive water heater.

I think your being too generous regarding what your referred to as bureaucratic valence. This is a really a planned disincentive because they want to put in as many barriers as possible. They want to maintain the current system because it generates the most profits for them.

Huh rare re us’

Those puns would have to be AWFUL after translation ... I gotta go listen to this in Spanish

NG is the most carbon neutral thing out there? So why not. Use. It.

Noise noise and fragile NOBODY WILL SERVICE THESE