Note the word: "stress"

http://www.powerstream.com/SwPSFAQ.htm

Mean time before failure. This is a statistical calculation, not a
measurement. All the parts in a device have mean time between failure
ratings. These are mathematically combined to get an MTBF number, often
dependent on the stress put on them. Even the via holes in a circuit board
have MTBF ratings. As you might think, as a rule of thumb, the more parts
the less the MTBF. However, sometimes you can replace one part with a few
more reliable parts, or spread the stress of one part over several parts and
increase the MTBF. The human body has a trillion cells and each cell has an
MTBF of 6 years. No wonder I don't feel so good. By the way, PowerStream
engineers are well equipped to calculate MTBF using MIL-HDBK-217E.

Wow - I sure got a lot of mileage from that inverter comment!
--
-jeff www.sv-loki.com
If you can't say something nice, say something surrealistic. -Zippy




"Gilligan" wrote in message
ink.net...

"CANDChelp" wrote in message

Embarassed? It's a 32 foot sailboat? Why do I need a big inverter? Please
explain why this is needed?

MTBF

Why are you trying to heat hot water?
--
----
Steve
S/V Pony Express

"Bobsprit" wrote in message
...
Steve, don't you want to discuss why I took so long to set up my hot water
heater???
It's really interesting!


RB

Do you remember what you wrote Bubbles? You didn't explain anything of the
kind.
But why would you remember, or accurately repeat, what you posted?

Here it is doug, word for word, in answer to the query about the size of
inverter..

Is your inverter big enough to handle the hot water heater?

Hot water heater is AC 120V. Water is also heated via the engine. Ran the
engine for about 10 minutes and got "warm" water.

Having only indicated 120V and engine as heat source, only a poor idiot like
you would still be wondering about an imagined inverter!
Bwahahahaaha! Face it, you barely read the post and now you have Bertie all
over your face!!!

bahahaha!

RB

Wow - I sure got a lot of mileage from that inverter comment!

Me too!!! Thanks! I busted doug up worse than a VW Beetle at a Bus rally!

RB

The engine is a lot faster than the AC Electric if you want a shower. If
I want a shower when I get in I Drop the sails out side the Harbor
marker and motor in. It cuts the heating time dowm at the slip. Also
allows replacement of fresh water in tank.

Thanks for the info.

RB

It is getting difficult to find low power microwaves suitable for smaller
inverters.
The cheapest ones are the ones with lower power requirements, and the
cheapest ones available keep creeping up in power.
The manufacturers think that people only accept lower power units because of
a purchase cost advantage.

Steve T.

"Thom Stewart" wrote in message
...
Nutsy,

I have a 500 Watt Micro Wave Oven, which I wouldn't exchange for your
whole sound system. Hamburgers, hot dogs, cooked Crab, Fresh fish fillet
sandwiches. hot coffee or chocolate, soups,etc all in less than 5min.
Baked potatoes in 9. Nachos & Cheese in 30 secs.

Inverter takes less room than that Force Ten BBQ you carry

That's my lesson. Not really necessary but better than all that NOISE
EQUIP in a quite cove.

AND: "I'LL DRINK TO THAT!" (A hot Tardy in two minutes and on the go)

Ole Thom