Heatworks model 1 (electric tankless water heater)

Daox · 03-18-14, 12:52 PM

While nothing completely revolutionary, this looks like a nice upgrade to existing tech that not only makes things more reliable, but also hopefully cheaper.

I like the carbon heating element vs the spring style. The idea of wifi controlled temperature is very nice. I also like that it has no flow switch... but I'm wondering how they detect water flow with out one?

Thoughts?

https://www.kickstarter.com/projects...r?ref=category

http://myheatworks.com/

MN Renovator · 03-18-14, 07:12 PM

Reading through the details, it says that normal tankless heaters take 30 seconds to get warm, with a graph showing a ramping temperature. Is that your experience with the output of your Stiebel Eltron DHC-E 10? This has been something I've been thinking about a bit lately and has been on the back burner to ask about but seeing this in their 'campaign article' makes me want to know.

Daox · 03-19-14, 07:46 AM

Without taking measurements, I'd say it probably does take a little while for it to heat up. It does hold a small amount of water in it, and I'm sure it can't heat that up instantly. I think 30 seconds seems a bit much though. And, the Model1 is very close to the same power output as my DHC-E 10 which is 9.6 kW, the Model1 is 11.5 kW.

I would imagine that the volume of water held in the unit has a large effect on how fast it warms up. I would think the Model1 would heat it faster because it is using the water as the resistor, not a heating element. However, you are still putting 9.6kW or 11.5kW into the water heater.

Here are the guts of my DHC-E 10.

Servicetech · 03-20-14, 06:59 PM

The problem with using water as the resistor is impedance will vary depending on the hardness of the water.

Daox · 03-20-14, 07:56 PM

I am assuming they've covered their bases. They probably have a current sensor that monitors how much power is going in and it adjust PWM duty cycle accordingly.

03-18-14, 12:52 PM	#1
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	Heatworks model 1 (electric tankless water heater) While nothing completely revolutionary, this looks like a nice upgrade to existing tech that not only makes things more reliable, but also hopefully cheaper. I like the carbon heating element vs the spring style. The idea of wifi controlled temperature is very nice. I also like that it has no flow switch... but I'm wondering how they detect water flow with out one? Thoughts? https://www.kickstarter.com/projects...r?ref=category http://myheatworks.com/ Attached Thumbnails __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Last edited by Daox; 03-18-14 at 02:03 PM..

03-19-14, 07:46 AM	#3
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	Without taking measurements, I'd say it probably does take a little while for it to heat up. It does hold a small amount of water in it, and I'm sure it can't heat that up instantly. I think 30 seconds seems a bit much though. And, the Model1 is very close to the same power output as my DHC-E 10 which is 9.6 kW, the Model1 is 11.5 kW. I would imagine that the volume of water held in the unit has a large effect on how fast it warms up. I would think the Model1 would heat it faster because it is using the water as the resistor, not a heating element. However, you are still putting 9.6kW or 11.5kW into the water heater. Here are the guts of my DHC-E 10. __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Last edited by Daox; 03-19-14 at 07:54 AM..

03-20-14, 07:56 PM	#5
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	I am assuming they've covered their bases. They probably have a current sensor that monitors how much power is going in and it adjust PWM duty cycle accordingly. __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

03-18-14, 07:12 PM	#2
MN Renovator Less usage=Cheaper bills Join Date: Nov 2010 Location: Minneapolis, MN Posts: 939 Thanks: 41 Thanked 116 Times in 90 Posts	Reading through the details, it says that normal tankless heaters take 30 seconds to get warm, with a graph showing a ramping temperature. Is that your experience with the output of your Stiebel Eltron DHC-E 10? This has been something I've been thinking about a bit lately and has been on the back burner to ask about but seeing this in their 'campaign article' makes me want to know.

03-20-14, 06:59 PM	#4
Servicetech Apprentice EcoRenovator Join Date: Nov 2013 Location: Moore Oklahoma Posts: 267 Thanks: 108 Thanked 23 Times in 21 Posts	The problem with using water as the resistor is impedance will vary depending on the hardness of the water.