This seemed interesting...although no price has been published.
Anyone have any other information on this product ?.

I have tried other tankless water heaters, but the flow rate is a little low on the electric ones.

http://www.pulsar-at.com/

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"A liberal is someone who feels they owe a great debt to their fellow man, which debt he proposes to pay off with your money."

No, but I like the idea! I sent them an email with a ton of questions.
I'd love to get rid of our tank. Our condo has a storage closet on the outside that also houses the water heater. I would guess that with this unit, I could rip the tank heater out, gain a bunch of space, and mount this microwave unit in the crawl space.

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Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport

My thinking is in a RV of any size.
Was hoping to find what the amp load was but the site says nothing about spec's.

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"A liberal is someone who feels they owe a great debt to their fellow man, which debt he proposes to pay off with your money."

Or a Boat Too! Great idea! A 12 gallon tank heater takes up a lot of precious space on a boat!

__________________
Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport

Forgive me for using the dirty word, but I'm skeptical - not that microwave technology can be used to heat water (it can), but that it could be practically useful in such an application.

I don't see how this could help but be less efficient than a properly designed electric tankless water heater. Such heaters dump the vast majority of the power consumed into the water. Where could the free lunch come from?

I'd love to be proven wrong on this, though, so please post back here if and when some facts become available.

Have you considered LP gas ones?

I'm a minimalist! Not!

But I am guessing that a microwave unit will be smaller and I'd never have to replace a resistance heating element again.

__________________
Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport

I think we need to see more spec's on energy consumption per litre/pint/quart per kw or however we measure 'lectricity nowadays.

.

__________________
[http://languageandgrammar.com/2008/01/14/youve-got-problems-not-issues/ ]

"A liberal is someone who feels they owe a great debt to their fellow man, which debt he proposes to pay off with your money."

Electric resistance heating is 100% efficient. Heat pumps can be up to 600%, but they are big and complex, and efficiency goes down as the temperature change goes up. Generating radio waves from electricity and using them to heat something is less than 100% efficient, but it might be possible to do it in less space than a resistance unit.

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'79 300SD W116
'86 190E 2.3-16V W201
'92 300D 2.5 W124
'99 E320 4MATIC S210

For existing tankless water heaters, specifications are already available, and the efficiencies are know to be very high. Units with significant capacity have walloping big power requirements simply because it takes that much power to effect the desired increase in temperature at the desired rate of flow.

For the "microwave water heater" mentioned in the opening post, I think the only specification available to us now is...

... that absolutely no specifications are available at this time!

On boats and RV's you'd have to be plugged in to get long effective use. In both instances, I prefer propane tankless heaters. The only downside is they have to be vented but the smallest units are quite compact and very efficient. They can also be used as mini-boilers for hydronic heating if necessary.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

I'm not a boat or RV guy myself, so tell me - what sort of electrical service (voltage and current rating) is typically available when one is "plugged in"? That by itself would establish the maximum flow of hot water that could be had for a given temperature rise from a tankless electric unit.

That's why I, too, mentioned LP gas units. If heat's what one wants, then things that directly burn fossil fuels really pack a wallop.

Do you have any particular reason for guessing this? Do you know just how small existing tankless electric heaters already are?

Would you care to hazard a guess as to the long-term prospects for reliability of the magnetron and the associated electrical components of a high-power microwave unit?

Don't know 'bout RVs, but depending on what size boat / slip, 30 amp 120VAC is the norm, and usually 40 foot slips and up will have 50 amp 240vac.

__________________
Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport

OK, now take a look at the specifications for even a quite low capacity residential tankless electric water heater. For example, got to SETS Systems and look at their model 110 "point of use" unit.

They describe that model as "ideal for secondary point of use application in warmer climates or in northern climates in the summer months". By "secondary point of use," they mean a single sink or low flow shower. See their chart for some idea of what one could expect with respect to input temperature, maximum output temperature, and rate of flow.

They're talking 60 A, 240 VAC for this. It takes a lot of power to heat up water "on the fly"!