Part # H300FDP
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.
my gas spa heater model H300 has a loud "KNOCK" white heating
been told there is sediment in the heat unit
How do I fix this ?
Hi, Steve. You will need to remove and inspect the heat exchanger. Running water through the unit can remove any loose sediments.
I have never had a pool heater before, I have an in-ground pool about 30,000 gallons. I live in the south and just want to heat the pool up earlier in the season. My question is can I use the heater part time? I don't know if I would let the water run through it while it is off, or should I put a bypass for when I am not using the heater. Would this hurt the heater?
Hi, Jeff. You can use your heater as you see fit. It is best not to run water through the heater when it's not in use. It would not hurt the unit, however, I would recommend that you install a manual bypass. FYI, drain the water out of the unit when water is being bypassed.
I want to install the Hayward Lownox heater on my pool but I live in the mountains at 3,000 foot elevation; do I need to buy a special high elevation heater?
Hello George, The Hayward Universal Low Nox are self adjusting up to 10,000 feet of elevation. Any installation above 2,000 feet will require a special restriction plate to be installed. Luckily, that plate comes standard with every heater so no need to purchase it separately.