Source of heat for hotwater

Adrian Bye

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Jul 7, 2002
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Thanks Bob. Here's a picture of a car accident:

800px-Car_Accident.jpg
 

suarezn

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Feb 3, 2002
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So question for everyone here who have electric water heaters, or electric shower heads...Do you have them hooked up to inverters or no showers when there's no power? That seems like most of the times you can't just take a hot shower whenever you feel like, but wait until EDEsomething turns the power on.

This is the reason I was recommending propane, tankless heater...
 

Ringo

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Mar 6, 2003
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Lets' get real. It is a huge problem anywhere in the world. Product made in one country BUT the instructions translated and printed in another. Following instructions takes some basic knowledge and some common sense and may become, in some cases, fatal. Not to comment IF the product is bad or not. The instructions CAN make a good product bad.

Any one NOT have this experience?

Regards, Ringo

BTW: Bob? You getting what you need?
 

Chip

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Jul 25, 2007
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Skippy

First, generally there is no ground wire installed in the homes here. Second, in spite of your insistence that 110V can kill someone, that will be very unlikely here as the Amps are much, much lower that in the States. I'm an engineer as well and also have done some rewiring and have had the pleasure of touching a hot 110 line in the States and here and there is no difference. Furthermore, I have been shocked numerous times by touching appliances here and computers while I was barefoot and even wet. And while it stung a little that was it. Also, being an engineer as well, explain to me what is the difference between an electric water heater in the States and the shower head appliances with regard to the failure of the heating element? I think it stands to reason if the heating coil were to fail while there was water flowing that the wwater would be energized, so why isn't there a large number of cases of deaths in the US where people have electric water heaters and copper pipes? Also, 40 deaths in so many years is not a whole lot considering that probably more people in the world use these types of shower head units than anything else. I have to run - have to attend a party and first have to take a hot shower - I'll let you guys know later if I made it, haha!
 

eztime

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Feb 11, 2007
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hello guys...I have not posted here in a while first of all the me tell you I and a maintenance engineer. I have installed many of propane heaters. personally I believe that is the best way to go. hot-water on-demand and very efficient. also pretty simple and easy to install. the unit only comes on when there is a call for hot water. and then turns off when there is no more demand for hot water very efficient and very safe. that is if it's installed properly. now on to a little story....I have known for years the water and electricity does not mix..you can mix the two together but with a less than pleasant outcome. I recently rented an apartment for my GF..but did not realize it had a shower hot water heater.that was the first and that had seen anything like that in my life..first thing that went to my mind is that I'm going to get electrocuted. or get the shock of my life. so far have continued to use this mechanism would extreme caution. but the very first chance I get I'm going to install a propane hot water heater..
 

eztime

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Feb 11, 2007
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40 people dying from being electrocuted is not a lot less than one person you..that's 39 more than it needs to be
 

eztime

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Feb 11, 2007
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also people mistake getting electrocuted with the getting shock..I had a friend tell me one time that he got electrocuted while installing a ceiling fan ... I tell him no you got a shock if you had gotten electrocuted we would not be having this conversation
 

Chris

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Oct 21, 2002
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People are not reading carefully enough. There are two conversations here. Propane on demand hot water heaters (a little flame goes on in a white box mounted on the wall and heats the water as you open the faucet) .. and
An electric shower head - the water gets heated on demand by an electrical heating element inside of the shower head. Scary stuff, but we showered with two of these in two bathrooms for 5 plus years. If this is correctly installed, it is safe, cheap and effective. This is the one that Hillbilly talked about some time past.

Skippy, people here are quite self-sufficient and understand what we are doing clearly. So, no more of this two and fro one-upmanship please. We do have more than one Engineer on the board. In fact, a man that I was married to once was a nuclear engineer. Uhm.. we always had hot water ... :cheeky:

So, back to our electrical shower heads in the DR. Obviously they need to be correctly installed. The correct water pressure is important, otherwise, as someone said, you don't get hot water, or it is scalding. I don't know all the electrical stuff off by heart but will ask my husband for specs. He is an engineer twice over (electrical and electronic) and installed both these showerheads in Dominican Houses with Dominican Circumstances with street power from EdeNorte, 24 batteries and two inverters and a backup generator. OK, the house was well grounded. Our shower heads worked and worked well no matter where we drew power from, although on inverter they ate power quite ferociously. The piece that I insisted on, was where the pipe came out of the wall and into the actual showerhead - have that pipe well insulated with a thick piece of rubber around it. We also made sure that the showerhead was quite high up so that no-one incidentally could touch it while showering.

With long periods of outages (for days and weeks) with no power at all (and we did run out from time to time) .. we put the water from the tinaco on the roof through a coiled black pipe (coiled up on the roof) and I always had something for a shower. I don't know who remembers but we had that period where we had no power, and the propane ran out and the country was short of both diesel and gas. Remember? I could still take a hot shower!
 
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Hillbilly

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Jan 1, 2002
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For 46+ years and counting I have used various and sundry methods of hot water heating. I have had lots of cold showers, too. Unless I was in Jarabacoa or Constanza, it was no problem, but i was a LOT younger then.
I have had shower-head water heaters for close to 40 years with very satisfactory results-with the caveats expressed by Chris above, and others-and important energy savings.
I have had an on-demand propane water heater, which, while very efficient, was also very costly, even when propane was cheaper. No more.

I have had and still have, medium sized electric heaters. they can be useful if you have a good source of electricity 24/7....However, there is an important pair of caveats: They can be very expensive if people leave them on all day and night (1) and I have heard that they can explode if the water goes off and they turn into boilers, rather than heaters!! (2)

Oh yes, I have put hoses on the roof, too!

I think, with the new technology and materials that are available, a combination of shower-head heaters, Tinacos on the roof, and a good solar heater, you would be more than well supplied.

HB
 

bob saunders

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Jan 1, 2002
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Yes, I don't mind a cool shower, but Jarabacoa's water in the winter months is frigging cold. There are preferable ways to test your heart. I think I will probable go with a passive solar system with a inline propane backup. There are several one piece solar unit built in my home province of British Columbia that are cost effective for initial layout and have no moving parts to mechanically fail, so even a neophyte can install them. If I end up with getting the electrical showerhead, I'll install it myself, I have restored several century homes-rewired, plumbing,....etc so I think I can do it safely. Thanks everyone for the great suggestions.
 

Chris

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Oct 21, 2002
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I'm finding more and more resources on heat pumps or geothermal type of heating. Never seen this work however. Apparently one can use ambient heat (from rocks, underground or ambient temperature) to heat water (or in the North, to heat houses).

Here is an article from an australian site. They say that a heatpump to heat water uses 1/3 of the electricity that a conventional system may use. This article shows a system with some boosting by solar panels on the roof. Eco-Smart Plumber - What is a heat pump water heater?
 

jer

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Apr 9, 2008
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so what brand do you recommend and where to purchase it. any brand to avoid? will they work with tinaco water pressure, or should a pump be installed?
 

Adrian Bye

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Jul 7, 2002
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We're also investigating these propane hot water heaters, but apparently most of the units sold in Santiago are chinese.. If I have something like this in my house I want a US/european brand.. anyone know where we might find these?
 

Ringo

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Mar 6, 2003
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We had a Longvie that lasted about 2 years. Ochoa. 10K pesos. Longvie SA Full time pilot light.

Installed a Lorenzitti. Ochoa. $$? 2 D batteries for ignition. Adjustable flow rate and temp. was difficult to set. Lorenzetti S.A. - Duchas, Chuveiros, Metais Sanit?rios, Aquecedores a G?s, Filtros e Purificadores, Recursos Humanos

Both, most, must have some water pressure to open the valve that starts the heating burners. So it would depend on how high your gravity water tank is to have enough pressure to open the valve. I'm thinking about 10 psi min. but no sure.

Regards, Ringo
 
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Adrian Bye

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Jul 7, 2002
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Thanks for the post Ringo. I notice one of yours is argentinian made, the other from brazil. No US/european units?
 

Ringo

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Mar 6, 2003
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We could not find any others. But as you know, stock and brand names will change. If we see something that will work, we don't get to picky.

Regards, Ringo
 

Ringo

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BTW: We have found that a sales assist. at one Ochoa will call the other 2 to see what they have in stock. Saves having to go to all the stores.

Regards, Ringo
 

rotondon

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Aug 16, 2007
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electric shower heads no more no less dangerous than any other electrical appliance-been in use in central and south america for ions of years-

on demand gas w/h or tankless becoming very popular all over perhaps a little pricey-also available on demand electric which is now available on 120 volts

have one in the 240volt version have saved about 20% per month
company name is TITAN they are in Miami

take your pick on budget and availability
as in any of them gas or electric manuf. recomm. shoul be followed.

give myself no titles or expertise

rotondon
 

Keith R

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Jan 1, 2002
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electric shower heads no more no less dangerous than any other electrical appliance-been in use in central and south america for ions of years

Yes, and I have used them safely there many, many times.

HOWEVER, they tend to be energy-inefficient. Brazil, for example, has decided that they can reduce a big chunk of their energy consumption by replacing electric shower heads with solar water heaters. Some Brazilian cities have even passed laws requiring all new buildings to have solar water heating systems.