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MODEL#H250FDP
MANUFACTURERHayward Pool Products
(4 out of 5 Stars on 1 Ratings)
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Universal H-Series Low NOx Heaters For In-Ground Pools and Spas - Electronic Ignition Dual ThermostatNow With Cupro Nickel Heat Exchanger!NEW Hayward Universal H-Series Low NOx heater combines industry-leading hydraulic performance; environmentally responsible low NOx emissions and a standard cupro nickel heat exchanger with a low profile appearance, lighter weight design, independent left or right side electric, water and gas connections plus 2" x 2 1/2" CPVC union connections to provide the ultimate installation flexibility for new or existing equipment pads. It also includes a forced draft system that constantly moves air through the combustion chamber at a precise flow rate. As a result, all outside weather variables that can affect the heating performance, such as wind conditions, are eliminated - without having to install a high-wind stack. NOTE: The Hayward Universal H-Series heaters meet the NOx Emission standards set by the California South Coast Quality Air Management Commission for 2001 and the Texas Natural Resource Conservation Commission Code. Applications:
Technical Specifications
Overall Dimensions
Hayward Universal H-Series Owner's Manual (1.8 MB)
Hayward H-series LoNox Installation Guide (6.63 MB)
Hayward Heater BTU Selection Guide (778.65 KB)
Please feel free to view our complete library of owners manuals.
How To Select a Gas Heater For Your Pool or Spa
Where can my heater be installed?
There are specific venting requirements and clearance distances that must be met to ensure proper operation. Consult the owner’s manual for exact specifications for your model of heater.NOTE: Gas fired heaters should be diagnosed and repaired by trained personnel.
Is a vent required for typical outside installation for the Hayward 150k Ng Lo Nox heater?
For the Hayward Lo Nox heater, you would not need to purchase an additional vent if you are using it outside. If you are installing the heater outside, we recommend you purchasing a heater cover. This will protect your heater from debris, rain, snow, heat- or pretty much anything that could get caught in your heater. The Weather-Out Pool Heater Cover can be viewed on our website.
What is the elevation rating for the Hayward H-Series Low Nox Heaters
Per Hayward, the Hayward H-Series Low Nox Heaters have an elevation rating up to 7,700'
What is the difference between an Electronic and Millivolt ignition?
The basic answer is that Millivolt is the old style of ignition, using a standing pilot light. While the electronic ignition uses a spark start system like a gas grill. Electronic ignitions are more efficient in gas usage and also are better suited for high wind areas where a pilot light might get extinguished.
Will a gas heater operate at the low speed of a dual speed motor?
Probably not - Most gas heater will shut off at low GPM levels (20-40) to keep the heater cores from overheating - 20 for 200 BTUs, 40 for 400 BTUs. Depending on your pool system you might get these GPM levels at the low speed but generally these heaters must be run at the motor's high speed.
How do you know if a pool heater is a propane heater or a natural gas heater?
Typically in the product name we use the abbreviation of "LP" for propane or "NG" for natural gas. Click here for a full listing of our >Pool Heaters.
Replacement parts for Hayward Universal H Series Low Nox Heaters
Ratings Summary
Average Rating: (4 out of 5 Stars)
Recommended: (100%) 1 of 1 customer would recommend this product to a friend.
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The Most Helpful Review
4 of 4 people found the following review helpful:
(4 out of 5 Stars)
Reviewed By: ALBA from Bell Isle,FL (10/2/2010)
Pros: easy installation. to carry.
Cons: Electical /gas connectins are in the same panel
This is a great heater, I love the small compact size.Is also very quiet, very durable and easy access to work and replace any parts. I would recommend to any pool / spa owner.Hayward products are very reliable,easy to order and friendly sales people to talk too. I will be looking forward to be selling and Installing this product in the future. thanks
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