[Greenbuilding] Baxi Luna question

[George J. Nesbitt]

Even better might be to use a tankless electric (SESCO) as a backup to 
the solar water heater. Invest in a larger storage tank vs. panels, a 
tank with a internal heat exchanger for the solar loop. Invest in water 
efficient fixtures, distribution system (structured plumbing), and a 
D'Mand recirculation pump.

Drew A. Gillett, P.E. wrote:
> don't waste your money on a tankless
>
> instead , save a lot of capital, some operating costs,  a lot of maintenance 
> costs,  and a hassle with poorly operating tankless units and simply install 
> a backup electric heating element in the top of the solar tank and an extra 
> collector with the money you save on not buying the useless tankless.
>
> ----- Original Message ----- 
> From: "Jefro" <jefro at jefro.net>
> To: "Greenbuilder list" <greenbuilding at listserv.repp.org>
> Sent: Tuesday, June 12, 2007 8:57 PM
> Subject: Re: [Greenbuilding] [BULK] Re: Baxi Luna question
>
>
>   
>> You guys have me worried now.
>>
>> I'm building a new house & plan to install a Baxi Luna, Takagi,
>> Bosch/Aquastar, or similar propane tankless heater, which will
>> eventually back up a solar preheat tank (when I can afford the solar).
>> Kitchen sink is 10 feet from the heater, tub and shower are upstairs,
>> total run to get there is about 40 feet.  I'm wondering now if a better
>> option is to install a direct-vent gas tank and double-wrap it in
>> insulation.
>>
>>
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>
>
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