Product Description
Universal H-Series Low NOx Heaters
For In-Ground Pools and Spas - Electronic Ignition Dual Thermostat
Now 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:
- Forced draft system constantly moves air through the combustion chamber at a precise flow rate, eliminating all outside weather variables that can effect the heating performance, such as high wind conditions -- without a high wind stack.
- Our patented single header "V" baffle design heat exchangers allow for long life, fast heating and virtually no condensation. All Hayward heat exchangers are now constructed with highly resilient Cupro Nickel for greater durability and longevity even in salt-based, high flow or aggressive water chemistry set ups.
- Easy-to-read L.E.D. digital Control Panel provides digital temperature readout and diagnostics for quick identification of components that might need service.
- New polymer header provides superior hydraulic performance to save energy and protect against the damaging effects of erosion from high flow conditions for improved reliability.
- Designed for today's larger diameter plumbing systems with 2" x 2 1/2" CPVC unions.
- 1 Year limited warranty
- Now with Cupro Nickel Heat Exchanger
Technical Specifications
| Model # |
BTU Input |
Gas Type |
Heater Width |
Weight |
| H250FDN |
250,000 |
Natural |
28" |
165 lbs. |
| H250FDP |
250,000 |
Propane |
28" |
165 lbs. |
| H350PDN |
350,000 |
Natural |
33 1/4" |
195 lbs. |
| H350FDP |
350,000 |
Propane |
33 1/4" |
195 lbs. |
| H400FDN |
400,000 |
Natural |
36 1/2" |
197 lbs. |
| H400FDP |
400,000 |
Propane |
36 1/2" |
197 lbs. |
Overall Dimensions
BTU:
250,000 BTU
Gas:
Propane
Ignition:
Electronic
Thermostat:
Dual
Product FAQs
10/8/2013
Q:Where can my heater be installed?
A: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.
1/17/2013
Q:Is a vent required for typical outside installation for the Hayward 150k Ng Lo Nox heater?
A: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.
10/18/2012
Q:What is the elevation rating for the Hayward H-Series Low Nox Heaters
A:Per Hayward, the Hayward H-Series Low Nox Heaters have an elevation rating up to 7,700'
10/10/2012
Q:What is the difference between an Electronic and Millivolt ignition?
A: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.
2/29/2012
Q:Does this heater require a vent collar for indoor installation? It will be in a separate room with a vented door and not connected to the house.
A:Any gas or propane heater installed would require the appropriate indoor draft hood be installed. This would allow for proper ventilation of the heaters exhaust fumes.
1/16/2012
Q:Will a gas heater operate at the low speed of a dual speed motor?
A: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.
12/29/2011
Q:How do you know if a pool heater is a propane heater or a natural gas heater?
A: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.