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Support for Tankless Water Heaters
I have tandem tankless water heaters in my home. How do I enter these on the home profile. Essentially the capacity of the water heaters is infinite, but there is no overhead of keeping a tank of water heated nor does insulating the tank make any sense in this circumstance.
I’m unsure
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We added support for tankless water heaters in a recent release. Unfortunately, I've been too busy to update all the questions about them.
Mj
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this answers the question
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Thanks again for all the conversation and feedback on needing support for tankless water heaters - we completely agree and are working on adding support for this in an upcoming release. As soon as we have an official availability date, we'll be sure to share with community. Keep the ideas and feedback coming.
Regards,
Karen
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this answers the question
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Inappropriate?Hi Mitch,
Thanks for your question. Support for tankless water heaters has not been implemented as of yet. These type of water heaters are planned for subsequent releases, meanwhile it may over-estimate your water heating costs.
Regards,
Travis
I’m thankful
1 person says
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Inappropriate?One way to emulate having a tankless water heater is to set your water heater capacity to zero ("0"), or something near zero.
Yes, the real capacity is "infinite", but the way the energy required to run your water heater is calculated is based upon keeping 30-50 gallons of water at 140F for 23 hours a day for no reason, and 1 hour of heavy use (showers).
If you want to be really technical about it, you can look at your Energy Guide sticker on your tankless heater and look at the "average" reference energy usage number vs. the tankless heater. Make it a fraction and multiply it by a real water heater's capacity in gallons to get a fictitious capacity.
Example I made up:
If a typical water heater costs $160/year to operate, and your tankless is rated at $55/year, 55/160 = 0.34ish.
Multiply that by 40 gallons (or whatever size is appropriate),
40 * 0.34 = 13.75ish, so it's like a 14 gallon sized water heater
That's just an example. Basically you just make a ratio that will fudge the correct yearly cost for your tankless water heater to get Hohm to be more accurate.
You can learn more about normalizing the costs per energy here and probably get an even better guesstimate based on your actual numbers from the manufacturer:
http://www.energysavers.gov/your_home...=13010
I’m pretty OK with this workaround.
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This answers the question
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Fantastic - thanks for sharing this with the community! We are actively looking at tankless water heater support since there is an overwhelming set of feedback to support this. I can't commit to an exact timeline just yet, but as soon as I can, I will share it with everyone. Thanks! -
Inappropriate?Thanks again for all the conversation and feedback on needing support for tankless water heaters - we completely agree and are working on adding support for this in an upcoming release. As soon as we have an official availability date, we'll be sure to share with community. Keep the ideas and feedback coming.
Regards,
Karen
The company says
this answers the question
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Inappropriate?We added support for tankless water heaters in a recent release. Unfortunately, I've been too busy to update all the questions about them.
Mj
The company says
this answers the question
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