Showing posts with label natural gas pool heaters. Show all posts
Showing posts with label natural gas pool heaters. Show all posts

2/01/2012

Pentair 460736 MasterTemp Heater Natural 400-BTU, Grey/Almond Review

Pentair 460736 MasterTemp Heater Natural 400-BTU, Grey/Almond
Average Reviews:

(More customer reviews)
Broke again!
Update- the unit stopped working again on 5/1/09- same problem stuck thermostat- technician installed installed a one way valve between the heater and the Chlorinator cell citing backflow of highly chlorinated PH+ water into the thermostat. 100.00 dollar repair for parts and labor. Problem I have with this theory is that the cell was on the far side of a purposefully designed u turn to avoid this from the start- well see.
Purchased this along with several other components during a pool replaster & remodel the Spring of 08
This was bought along with a slew of new components that I will start reviewing - a new jandy RS 8 Automation system, solar panels, pentair quad de 60 filter, goldline chlorinator.
I decided to review this component first because Im having issues with it.
The heater is tiny - like a little 3 foot cube - way smaller than my old raypak 2100. Its form factor allows really tight installation, and I tucked it away in the back corner of the yard.
The unit is designed to be controlled with an automation system primarily, but also has a manual control panel underneath a plastic smoked little flip cover on the front. It hides a few functions- a power button, pool /spa selector, & a red led readout for temp and error codes, and a temperature up and down button. When manually changing temps, the display will react to panel button pushes then switch back to the current temperature flowing through the unit.
There are a few major issues you must consider and design for before you add a heater of this magnitude to your system.
It requires MASSIVE flow of natural gas, so much I had to completely rebuild my homes feed from the street to the side of the house to keep it running. I suggest having your gas provider do a load survey on your home before you even consider putting in a heater this powerful.
It requires at least 38GPM of water at all times including during the heaters "cool down" period. The unit will not fire up without at least a 38GPM flow through it so pools using smaller 1/4-1/2 HP circulation pumps are not likely to flow enough water to even let it fire- likewise even with larger pumps a filter that hasn't been cleaned in a while that has higher pressure may cause the unit to run intermittently or begin "cycling" as well.
The unit achieves its lox Nox capabilities by using a clever forced fed firebox using a fan. This is different technology than legacy heaters most are familiar with. You need to prepare yourself and the install site for increased noise, and heat. All vegetation in the exhaust stream- all organic matter I've seen in the exhaust path will be dead within months.
Once activated a slightly loud fan comes on and then after a few clicks-it fires up with a rumbly whooomf !
Frankly its a bit overkill for a normal 21K gallon pool. Just the way I like it. Its performance for its size is staggering, almost commercial pool like in its heat output. This thing could scorch the earth when running.
Unfortunately for me the unit had broken twice since May 08,
The first time it wouldn't fire up then shut off.
It took weeks to get a diagnosis.
Pool guy said he diagnosed it as an igniter & ordered parts & the parts never showed. After 4 more weeks of not having a heater I called a warranty center and the factory repairman came out. The guy literally replaced 5-6 different components costing upwards of 100 dollars each- over the course of half a day looking for the magic combo that would make it work.
The broken part was the very last thing that could have broken - the gas block. Im still trying to figure out what could even go wrong with a solid looking block of metal.
Access to the inside is a breeze and thats a good thing. Each panel has basically 4 bolts holding the panel on. It is easy to get to the components, and the system has onboard diagnostics but its hard to actually nail down problems as the on board diagnostics dont seem to be able to pinpoint issues really well as each problem required multiple investigations.
A month ago it started firing up and clicking off. Another multi- diagnostic problem. My pool guys diagnosed an igniter - again.
Another factory guy came out and traced the problem to a stuck internal thermostat. After replacing the internal t-stat the service guy traced its sticking to the water chemistry being "off" and showed me a corroded t-stat.
My chlorinator handles chlorine and I measure Ph weekly- if this is true one can NEVER let chemistry be off for any amount of time? That just isnt how pools work, all chemistry is a bounce bewteen a few point on each end measurement. - Or does this thing have a run of bad parts?
So Im building a love hate relationship with this part - (like the Miele blue moon vaccum in another review) I love it when it runs, but it doesn't seem to run reliably.

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11/25/2011

Pentair Mini-Max 100,000 BTU Propane Pool Heater for Above Ground Pools Review

Pentair Mini-Max 100,000 BTU Propane Pool Heater for Above Ground Pools
Average Reviews:

(More customer reviews)
This product does exactly what it advertises. It heats the pool and is quiet and efficient. The company was a pleasure to deal with, and delivery was in 2 days. Highly recommended.

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THE SMALL HEATER THAT GIVES YOU MORE! The MiniMax 100 heater is a compact, self-contained unit with an output of 100,000 BTU's and a high 82% thermal efficiency that keeps operating cost low while directing more produced heat to your pool instead of into the outside air. MiniMax features a patented thermostatic bypass valve which minimizes condensation-related calcium scaling and corrosion preserving heat transfer efficiency, quiet, dependable operation from proven burner system and a service-friendly design that includes a bronze header system for long life and union connection fittings for fast draining and easy winterization. Equipped with an electronic direct spark ignition for automatic control, and a simple plug-in 120V electric cord for easy installation. 1-Year Limited Warranty NOTE: These heaters are for residential use only.

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11/16/2011

Sta-Rite SR400NA Max-E-Therm 400-BTU Natural Gas Pool and Spa Heater, Black Review

Sta-Rite SR400NA Max-E-Therm 400-BTU Natural Gas Pool and Spa Heater, Black
Average Reviews:

(More customer reviews)
This heater is the most efficient rated gas heater and is a very nice size and appears to be indestructible. The first one I received via UPS showed up in ridiculous condition in an open box covered with dust and surrounded with shredded packing tape. It was quickly replaced with next day delivery via Fed Ex instead of UPS and was still only shipped in a single box but at least not crushed. It was installed in less than 2 hours by my pool guy and works well. Seems to heat 1 degree per hour, but with the cold weather now, I will close the pool and have to wait until next season for a long term test. The materials are a plastic fiberglass type of construction and this seems to be very high quality. More to come.
Amazon had the best price and despite the first shipping disaster they came through with customer service,even though the Phillipino service center is annoying with their "I am certain I can help" statement every other sentence! They really should consider packing this item in an outer carton. I posted some pics of the carton in the packaging feedback, not sure where to view it but if you find it , it they are hilarious.
My pool guy recommends putting a "fireman's switch" on this. It allows the pump to continue to run for 15 minutes after it shuts off the heater to allow residual heat ( 400,000 Btus worth)to be dissipated from the heater and protect the element and piping. I'll have it placed this winter.

Click Here to see more reviews about: Sta-Rite SR400NA Max-E-Therm 400-BTU Natural Gas Pool and Spa Heater, Black

First in its class - Sta-Rite Max-E-Therm Low NOx heaters offer the best in pool heating. Indulge in the warmth of your pool even as cool weather approaches without a single concern. Max-E-Therm offers advanced technology - a weather-proof frame, effortless controls, and an environmentally conscience exhaust. Perfect for pools and spas, each Max-E-Therm features an LED temperature readout with dual thermostat controls, 6-position control panel and PVC union connections. Start Saving Its high efficiency rating makes the Sta-Rite Max-E-Therm extremely economical to operate. The heat is on Designed for faster heat-ups , why wait to enjoy that soothing swim? A view from the top Top-mounted control panel has large format digital display for easy viewing. Self diagnostics Control panel indicator lights pinpoint heater or system conditions, which can save money through faster troubleshooting (if required). Easy on the environment Certified for low NOx emissions and outperforms industry standards for air pollution exhaust. Tough exterior Heater enclosure is made of Dura-Glas , an exclusive Sta-Rite thermoplastic resin that handles the heat and weathers the elements. NOTE: These heaters are for residential use only.

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