[Greenbuilding] ECO Smarts for Greenbuilders RE: Greenbuilding Digest, Vol 68, Issue 3

[Carmine Vasile]

Richard: Barbara made a mistake in her email cited below; its 40 watt-hr per day from a tank-type water heater; negligible from a tankless heater.       By the way, after 20 years of service my tankless water heater (Acutemp C150 by Keltec) wore out because our tap water is so corrosive it destroyed the all-copper, 3-tube heat exchanger assembly housing the 5-kW element. Our tap water has over 387 pCi/L of Radon-222 & lots of water-radiolysis, as you can infer from attached Nucleonica analysis.
Last Thanksgiving they the heat exchanger onto the control board and blew out the control system. In a panic, I called the manufacturer for a replacement because we used it for both space & water heating.     But the price shot up from around $500 in 1996 to $1700 in 2016. Since they still used a copper heat exchanger, I googled "tankless heaters with stainless heat exchangers" and discovered Home Depot was selling 11 kW ECO-11 tankless heaters by ECO Smart for $209.99, free S/H. So I bought one.       Worked great all winter and we save energy because it's maximum was 140F, not 180 from the Accutemp.CarmineP.S to Nick: Glad to see you are still trying to teach arithmetic to Reuben.   

Date: Sat, 16 Apr 2016 14:36:26 -0400
From: richard6 at gmail.com
To: greenbuilding at lists.bioenergylists.org
Subject: Re: [Greenbuilding] Greenbuilding Digest, Vol 68, Issue 3

http://waterheatertimer.org/

On Wed, Apr 6, 2016 at 3:32 PM, barbara deane-gillett <deaneg at hotmail.com> wrote:
typical loss from an electric water heater is 1 kwh per day or 40 watts not 4 watts



Sent from my iPhone



On Apr 6, 2016, at 12:01 PM, greenbuilding-request at lists.bioenergylists.org wrote:



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>   1. Water heater timer (nick_pine)

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> Message: 1

> Date: Tue, 05 Apr 2016 14:49:22 -0400

> From: nick_pine <nick_pine at verizon.net>

> To: greenbuilding at lists.bioenergylists.org

> Subject: [Greenbuilding] Water heater timer

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> Kill-a-watt's come in 240V.

> If the timer uses more than 4 watts, it likely uses more electrical energy than the heat energy it saves.

> Nick?

> Sent from my Verizon Wireless 4G LTE smartphone

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> -------- Original message --------

> From: greenbuilding-request at lists.bioenergylists.org

> Date: 04/05/2016  2:00 PM  (GMT-05:00)

> To: greenbuilding at lists.bioenergylists.org

> Subject: Greenbuilding Digest, Vol 68, Issue 2

>

>

> Date: Mon, 4 Apr 2016 18:30:31 -0700

> From: Antonioli Dan <solardan26 at gmail.com> wrote

>

> "I?m installing a solar thermal (?assisted?) electric hot water heater and will be including a digital timer and watt meter...

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