Hot Tub Forum

Original => Hot Tub Forum => Topic started by: Gomboman on April 21, 2006, 01:48:54 pm

Title: Why don't we have gas heaters?
Post by: Gomboman on April 21, 2006, 01:48:54 pm
OK, this is probably a dumb question. Why don't the major spa manufacturers offer gas heaters as an option?

I know natural gas prices have gone up recently but I'm thinking it would be more efficient than electric. Where I live, it costs me over $.20 per KwH to operate my spa and the prices keep going up. I have a gas water heater and a gas dryer at home. Most or all of the gunite pools and spas use gas.

I'm assuming that if everyone had a gas line right next to their spa it would be different?
Title: Re: Why don't we have gas heaters?
Post by: Wisoki on April 21, 2006, 02:02:12 pm
Jacuzzi spas of the past were retrofit to receive the needed lines to plumb in a gas heater. However The vast majority of of spa purchasers never spent the extra $1100 for the 95,000 BTU heater, plus instalation of gas lines, so they did away with the $4.00 PVC investment and went strictly electric.
Title: Re: Why don't we have gas heaters?
Post by: Dr. Spa™ Ret. on April 21, 2006, 02:04:31 pm
1. Expense. A gas heater would add over $500 to the production cost of the spa.

2. Safety. The heater would have to located remotely, at least 5' from the spa..... AND be properly vented.

3. Installation expense and difficulty... The spa would become significanly less "plug and play". Besides needing an electrician to wire it up, you'd now also need a plumber to run the gas line....... which by the way almost certainly could NOT simply be tied into an existing gas line, but would need a dedicated gas line run all the way from the main gas meter.
Title: Re: Why don't we have gas heaters?
Post by: Bill_Stevenson on April 21, 2006, 04:42:44 pm
I could be wrong, but methinks you can get gas heaters for spas, at least for the non-portable variety that are built into the ground.  In fact, the community I live in has a community spa and 3 pools, and it is served by a gas heater.  It is remote, the jets are not of the same capacity, or competence as what we are accustomed to, but it is gas heated.  Maybe it would be possible to retrofit a portable spe with an remote after market gas water heater?  The cost might be high, but a three year payback would attract the smart buyer.  I would look into it, but my community specifically forbids any gas except for a typical tank for the barbecue.

Regards,

Bill
Title: Re: Why don't we have gas heaters?
Post by: Chas on April 21, 2006, 10:04:15 pm
There is no such thing as a gas-heated spa.

Really.
Title: Re: Why don't we have gas heaters?
Post by: tanstaafl2 on April 22, 2006, 12:52:14 am
Quote
There is no such thing as a gas-heated spa.

Really.


I dunno, I have a fair amount of gas in my spa, especially if I go in after a big dinner!

And most of that gas is pretty warm....
Title: Re: Why don't we have gas heaters?
Post by: Chas on April 22, 2006, 11:28:19 am
Not what I meant...
Title: Re: Why don't we have gas heaters?
Post by: salesdvl on April 22, 2006, 11:35:12 am
Quote

I dunno, I have a fair amount of gas in my spa, especially if I go in after a big dinner!

And most of that gas is pretty warm....


Maybe its me , but if your water is 104 and you "blow" 98.6 air into it wouldnt that have a "cooling" effect?  Of course if the person had a fever....
;D   ;)
Title: Re: Why don't we have gas heaters?
Post by: Gomboman on April 22, 2006, 12:54:03 pm
It's funny, when I tell regular people (not spa people) that I have a spa, the first question they ask if it's heated by gas or electric.  ???

When I tell them that none of the manufactureres use gas they don't believe me. I'm not sure why.

Quote
There is no such thing as a gas-heated spa.

Really.

Title: Re: Why don't we have gas heaters?
Post by: chaunceyboyblu on April 22, 2006, 01:18:39 pm
the extra cost could never be offset by the savings. how about having one that uses waste oil for heat, or corn cobbs? plus gas heaters make noise electric doesnt. when im in my tub late at night i like the quiet.
Title: Re: Why don't we have gas heaters?
Post by: Chas on April 22, 2006, 02:38:49 pm
I still maintin that there is no such thing as a gas-heated spa.

Just isn't.


Title: Re: Why don't we have gas heaters?
Post by: Gomboman on April 22, 2006, 02:53:16 pm
What do you mean Chas? Didn't Wisoki say Jacuzzi used to have one? I know almost all ingound spas are gas heated. I thought some of the old school spas ran off of gas. I guess you would know.

Quote
I still maintin that there is no such thing as a gas-heated spa.

Just isn't.



Title: Re: Why don't we have gas heaters?
Post by: Dr. Spa™ Ret. on April 22, 2006, 04:29:21 pm
There are currently no PORTABLE spas that come standard with a gas heater........ years ago there was. They used a Ranai (sp) heater that vented right out the side of the skirting. Most inground spas, and the vast majority of our traditional wooden hot tubs are heater with gas. A few people have done gas conversions to portable spas, but as previously said, even with the cost savings of heating with gas, the cost of the conversion will never be made up. The main reason for doing the conversion is the heat up time. Rather than 2 to 6 degrees per hour, you can get 20 to 35 degrees per hour.
Title: Re: Why don't we have gas heaters?
Post by: East_TX_Spa on April 22, 2006, 05:02:07 pm
Quote
or corn cobbs?


(http://i20.photobucket.com/albums/b206/EastTexasSpa/d84f1a05.jpg)
T.P. Cooter sez:
"Dang son, corn cobbs is fer wipin' yore'n backside, not fer heetin' yore hot tub, lessin' it's a Sooper Hind End Deeelux hot tub."
Title: Re: Why don't we have gas heaters?
Post by: OC_Spas on April 22, 2006, 05:03:11 pm
Gas won't heat a spa. But a gas-fueled flame will. Is that what you meant Chas?
Title: Re: Why don't we have gas heaters?
Post by: Chas on April 22, 2006, 05:23:10 pm
No, but you're the closest.

What I mean is that the gas heater needs a pump to move the water through it - the larger the gas heater the larger the pump needs to be - so you are really heating with
Gas and electricity.

As a result, there is almost no savings at all unless you only heat once in a rare while or something like that.
Title: Re: Why don't we have gas heaters?
Post by: Chas on April 22, 2006, 05:25:24 pm
Also, as has been stated, the cost of the heating appliance has climbed over the years - you can easily spend one or even two thousand bucks to get a mid-sized heater. And then the gas line will have to run from the meter to the heater. That gas line will need permits, and a pressure test, a trench, and finally plumbing from the spa to said appliance.

And as I mentioned above, a pump must be pushing water through the thing for it to work.