Gas hotwater

[mitasol]

Looking at replacing the electric rheem with a gas system, would go solar but they are still too expensive for me. Only 2 people in the house, usually spend around $300 a year on hot water with the electric system. How much gas does one of the inline type units use? Any feedback would be appreciated.

thanks

Scott

[Stu in Tokyo]

Dunno how much gas they use exactly but our inline unit works only when needed, so it has to be cheaper than a tank type, plus with two almost teenaged daughters, it is nice to always have hot water :2tsup:

[mitasol]

Dunno how much gas they use exactly but our inline unit works only when needed, so it has to be cheaper than a tank type, plus with two almost teenaged daughters, it is nice to always have hot water :2tsup:


LOL, thankfully no kids here, just a dog.

[juan]

We had a Rheem storage gas HWS until a few days ago. Shower mostly used only by my daughter who showers for 15 mins daily(wife and I use ensuite with a second Kill the bank electric HWS). Gas system used also for kitchen and laundry. Gas bills are $1.20 a day roughly.
Replaced with new Rinnai 26 Plus Continuous HWS(with 2 controllers) last week as part of a renovation project. Absolutely love it and expect the cost to come down as no inefficient reheating of stored water 24hrs a day. Heat it when u need it.

[mitasol]

ok thanks - I had one plumber tell me that I would be up for a $1,000 gas bill (per annum). I think he might have been trying to push me towards solar, which I would like but can't justify the cost just yet, even with all the rebates.

[zelig]

ok thanks - I had one plumber tell me that I would be up for a $1,000 gas bill (per annum). I think he might have been trying to push me towards solar, which I would like but can't justify the cost just yet, even with all the rebates.

You can save heaps on installation costs and install a heatpump system. It uses refrigeration technology in reverse to take heat out of the air.
eg.
http://www.rheem.com.au/domestic_product.asp?model=551310&cat_id=

http://www.dux.com.au/products.php?name=D2FH1800C

You get all the same rebates as solar so $1000 from Fed Gov, $800 from NSW gov (if in nsw) and REC's (approx another $800)

[macca2]

We have a Rheem Stellar storage type gas HWS and over the last 7 years has averaged $272 per year or 74 cents per day to run.

We are a 2 person house and the system supplies all hot water. i.e. shower, bath, kitchen and laundry.

Very happy with this.

Macca

[bricks]

With most of the installs I've done, (quite a few), and without any reference to a statistic or whatever, i'll tell you this.

Gas is always cheaper than electricity.

Storage gas heats (turns on) more often than instant hot water sevices but, does so with less gas consumption per hour at each burn. ( does that make sense)??

The end result usually means that gas storage and gas instantaneous usually use a comparable amount of gas, ( roughly the same price)

If you use allot of water all the time go storage, with quick recovery burners, if you use limited hot water infrequently then go instant.

The cost of gas hot water over electric hot water should always be less.

[tameriska]

I just upgraded from the hot water running from a wood stove to a natural gas instant hot water service.

After looking at the different models of the Instant Gas HWS, etc on the market, I decided on a Rinnai Infinity 26Plus. The price for the unit that I was told, with two standard controllers was just under $1500. I was looking at the Rinnai Infinity 16 to begin with, but at around $900 with no controllers, it made sence for me to pay the extra and have the capacity there if I needed it.
Some deciding factors for me to go with the Rinnai Infinity 26Plus were, if you add two controllers to it, you get free labour on warranty for five years, up from three, and the heat exchanger has a 12 year warranty, compared to the 10 year warranty of the other Infinity models.

[Ron Dunn]

A year ago I replaced a tank-based gas hot water system with a Bosch continuous heater (25 or 26 litres per minute). I've just had a look over the gas bills for the past two years. I've paid about 15% more since installing the Bosch heater, but this is a little misleading because I've been home more during winter this year, thus using more gas heating.

I use gas for cooking, heating and hot water, and my total annual bill is around $500-600. I have three people in this house - me, my wife and a daughter, both of whom have long hair and love long showers. The plumber that suggested $1000+ for gas continuous hot water must be an idiot.

[wonderplumb]

Gas is always cheaper and its a matter of personal opinion wether or not you want storage or instantaneous. Be aware of the fact that you will need to have a tempering valve installed, if you dont have one already.