Try installing an electric tankless. If California does force/ convince customers off gas most every house will pushing the limits of their electric service. Consumers would not be forced to upgrade their panels. Again, ON PAPER, the 50 gallon Marathon vs Hybrid would have a roughly $300/yr cost difference. What am I missing? Panel space is also a real problem, but a more general problem for older homes, and not brought on solely by the water heater issue. Since this thing plugs into a standard outlet, it has to have a max draw of 12A. Understood, I really like these things. I'm not sure who they think this is going to appeal to. In a recent webinar, Geoff Wickes from NEEA, described how for every 10 degrees you turn up your water heater, above the standard 120 degrees, its as if you get an extra 10 gallons of hot water storage. I have a 66 gallon AO Smith HPWH with the temp set to 150 and then mix it down to 120 with a tempering valve. Providing advanced solutions for California contractors and homeowners seeking a drop-in gas replacement, the ProTerraPlug-in Heat Pump Dedicated and Shared Circuit models boast high-efficiency performance, up to five times of a standard gas water heater, without the need to upgrade the electrical panel for 240V hardwired service. I'm still making decisions like "what can I fit in a crawlspace", as none of the HPWH are short enough. New Units with Innovative, Smart and Sustainable Design, Launch in California. Well, let's see if it's straightforward. Homeowners and plumbing contractors in California can also benefit from incentive and rebate programs providing additional cost savings. Founded in 1925, Rheem is America's #1 water-heating brand with products available in more than 80 countries. It would be a California-centric product, at least to start. It only has a heat pump to heat your water, so it needs less electricity supply (but it still is able to provide all the hot water youll need see below). It depends on which province you live in. At a cost differential of about $700 including tax credit, the payback is about 3.5 years. In previous, pre-climate catastrophe times, news about a new type of water heater might be laughable. You're right, upon reflection it's probably uncommon in older homes where natural gas or propane was the fuel of choice for heating. Upon taking possession, we installed a new oil-fired boiler, Tekmar Control system, and indirect water heater. That's pretty good--better than an investment in the stock market. Even replacing the Hybrid every 10 years would result in thousands of dollars of overall savings, over a 10 year cycle. The company representatives indicated that the plug-in versions would make about the same amount of noise as the 240-volt models when operating, cost about the same, and would use the same type of refrigerant. These rods are the same technology used in standard electric water heaters and require a lot of electricity. Renewable energy got a big boost in the Inflation Reduction Act with new long term stability for clean energy investments. Maybe the $5K+ SANCO2 isn't so special. It's on a dedicated 30A 240VAC circuit. This means that in the end, it will cost the same amount to heat a tankful of water. They can be mfg locally provides work of different skill levels and will still crank out hot water when everything else fails. I just spoke with the same Rheem sales rep mentioned in the article - and he said it'll be at least another month before one can even order their 120v HPWHs - then a few months after that before they are delivered. I have supplemental evaporative cooling, although I've pretty much abandoned it because of maintenance and water consumption issues. And LG has a split model (which I think is also more suitable for space heating). The 120V ProTerra Plug-in is available in two versions, allowing users to explore the Dedicated Circuit or Shared Circuit models. Naturally, the subject of heat-pumps leaps to mind and I'm trying to imagine a case where one of these makes sense. Paloma Co., Ltd. of Nagoya, Japan, acquired the iconic Rheem brand in 1988. But what about wintertime? Why would a company be content with their product failing randomly? Wonder if the lower flow shower heads facilitate making a temp boost from an inline instant WH connected to these WH a feasible solution to deliver sufficient hot water. This need is evolving, and as it starts to include HPWHs (120V or 240V), GE will bring great products to serve those needs. Because of the reduced current, they take longer to heat water and have lower first-hour ratings, a measure of how much hot water they can produce in the first hour of operation. She responded The Manufacturers and models are expected to be production ready by Q1 of 2022.. As I remember it, the warranty wouldn't have covered labor at that point (just parts). But that's not the way this particular house works. So either they misunderstood your question or you misunderstood their answer, or their data sheet is wrong. Where they will suffer is in recovery speed, because they only have half the power input to the heat pump. This all occurred circa 2016-2018 though, so maybe things have changed and plumbers are learning how to repair these things. Works like a dream and we've yet to run out of hot water My favorite inexpensive, plug-in, 120V inline water heater. Unless there are strict measures to encourage adoption these will have to be for true believers. What would be interesting is if they have a heat pump can this use the outdoor unit. If I use a HPWH, for example a Rheem that claims 375% efficiency that number is $0.18/day. Since then I've occasionally called local plumbers and 95% of them have said, "We don't work on hybrid water heaters." Market demands and ongoing feedback from plumbing partners served as the catalysts for the latest expansion of the ProTerra family of HPWH. That pays off the initial cost difference in 2 years and completely pays for the Hybrid in 5. Heat pump water heaters are orders of magnitude more efficient than polluting natural gas and old electric resistance water heaters, which means families will save hundreds of dollars a year in energy costs and literal tons of CO2 emissions. They are announcing a new Federal $5,000 grant which would apply to the whole purchase if that's all you upgraded. I just put a thermocouple on the inlet and outlet pipes of my existing WH. Heat-pump water heaters are far more efficient than conventional electric tank models. To the average homeowner hot water is a given. There is a local installer down here, that had a customer who owned a small apt building, the gas was shut off and no one said anything because the how water kept coming. But what about the other 54% of water heaters across the nation, the 64 million, mostly natural gas powered, machines that are heating the nations water? I didn't need another wifi app to control something I have never had to think about. Get building science and energy efficiency advice, plus special offers, in your inbox. > One approach is to store water at a relatively high temperature. Has anybody been able to buy 15A/120V HPWH from any maker? The electric resistance heat is also appealing. Homeowners will thus get to store their water at a higher temperature and the water heater will make sure its still safe. In conjunction with public utilities like PG&E, SCE and SMUD, the trial leveraged a Rheem ProTerra Plug-in Heat Pump with HydroBoost and LeakGuard (a Shared Circuit model) as the first of 32 HPWHs that were installed in single family homesto prove they sufficiently met demand. On PEI it is also dependent on your income varying between $1,200 and $1,800. Dealing with the emergency replacement problem and helping home owners get plans in place for appliance replacement will be key to these 120v HPWHs making a difference. Presumably a 2 person household would use notably less. Also fine without 240V. My understanding is that Rheem is reasonable with warranties. Finding space in the panel for new circuits for a stove water heater and EV charger is going to have lots of people upgrading their panels or accepting reduced performance from a water heater. ProTerra Plug-in models are best suited for use in most regions of California where average ambient temperatures remain above 37F throughout the year. You can get a Rheem Marathon that has a lifetime warranty and almost no standby losses and be done. The table below provides all brands available for both 240 volt and 120 volt (120 volt versions noted as emerging). I asked Rheem that question and they said it was possible to use 120V on a 15 amp breaker. My family rewired our water heater to switch out gas for electric heat pump. So, I'll need an installer. Both use 240 volts of electricity so making the transition is relatively easy. But agreed, resistance heat assist would need more watts. Until relatively recently, no one thought much about the big tube-like machines with pipes and wires sticking out of them that sit in our closets, basements or garages, and somehow provide all the steamy showers we could ever want. The newest development in heat pump water heating is the production of a 120 volt 15 amp version. One offered to come out, and said it would be a couple hundred bucks to look at it. Heat pump water heaters needed 240V which required consumers to upgrade electrical panels for 240V hardwired service. What I'm saying is that if the difference between the two types is significantly large (based on 3 people), small errors due to assumptions about scaling (for 2 people) are unlikely to significantly affect the conclusion. Capabilities include adjusting water temperature, scheduling and tracking energy usage from a smart phone. When energy is used is going to be increasingly important and tank water heaters are the low hanging fruit for this. Electric resistance would be, for all intents and purposes, 100 per cent efficient. Even though they dont have the electric resistance backup, 120 volt water heaters are still able to deliver all the hot water heater necessary especially for households with 2-4 people in them. Since they already have an existing supply of electricity, its easy to switch them out for the new 120 volt heat pump water heaters. It seems like the concern is panel space, not actual load. Become a GBA Prime member and get full access to GBA articles, enyclopedia, videos, CAD library, and more. From what I gather, the 120V water heaters will have similar COP to the 240V water heaters, so similar performance. Same boat. Even in the north its a total no brainer. Panama Bartholomy, director of the Building Decarbonization Coalition, said development of the plug-in HPWHs could be traced to a conference in San Francisco in 2019 in which industry and environmental interests met to discuss how to reduce the use of fossil fuels. Homeowners who wanted to switch from a gas water heater to a HPWH will be forced to upgrade the electric panel if the panel doesnt have the capacity for a new, dedicated 240-volt circuit. Until now, heat pump water heaters have only been available with 240 volt electrical connections. I feel your pain, as I also need a lowboy solution. Will the 120V heaters have lower performance when running in heat pump only mode? Are Expensive Building Components Necessary? Drilling big holes for air ducts is a crude solution, running line set is a more elegant solution. Looks like Tucson averages 1500 HDD and 4000 CDD, so the contribution would be large, but probably difficult to quantify since it might not directly offset AC use unlike integrated systems. Any new homes will continue to have the same setup. In Canada right now, you can't buy one anywhere. 2. Water heaters are the, in a typical household in the US, and a clean version of this boring technology might help save the day and our planet. But the models under development, and in some cases now in field tests, are designed to run on either a dedicated 120-volt circuit or a shared circuit that also powers other devices. I think these heaters will be a great asset for retrofits. This won't delete the articles you've saved, just the list. She responded , The Manufacturers and models are expected to be production ready by Q1 of 2022., Huge thanks to Geoff Wickes and Amruta Khanolkar for sharing their expertise in this article and check out a, where both Jeff and Amruta presented on this game-changing technology. With 4 people, I use 70 kWh per month, except in May spring when my solar water heater helps to cut the consumption to 35 kWh. It also reduces growth of Legionella as discussed above. I might just wait until these come on the market now. Thats something we have to factor in as we think about these conversions., The company didnt discuss its reasons for jumping back into HPWHs except to note that the industry is evolving. GE has not announced when its version might be on the market, and its not clear where the new models will be sold. Hardly seems the stuff of the most technologically advanced country on earth. I completely agree. The DOE ratings for 50 gallon water heaters assumes an average 3 person household with over 60 gallons of usage per day. Kevin Clark, a regional manager for the company, said Rheem models had been in test homes for more than a year. In addition, our basement level is fully finished with the electrical panel located at one end and utility room at the other; even if we had sufficient capacity for a 240-volt tank, running a new dedicated circuit is not in the cards. Even though my family has a 240 volt heat pump water heater, we leave it exclusively in Heat Pump Mode so that were heating water more efficiently and never relying on the electric resistance backup.