Pool Supplies > Pool Heaters > $1000 - $2500

Refine Search

Availability

In Stock (76)

Sub Category

Voltage

110V (16)
220V (35)
440V (7)
575V (0)
277V (0)
380V (0)

Hayward H400FDN Universal H-Series, Low NOx, 400,000 BTU, Natural Gas, Pool and Spa Heater - H400FDN

Product Rating:

( 1 review) | Write a Review

The Hayward Universal H-Series Low NOx 400,000 BTU Natural Gas Pool and Spa Heater is an eco-friendly heater built for energy savings and reliability.

$1,874.99

Regular Price: $2,099.99

Sku #: H400FDN

Free Shipping on this item

Hayward H400FDN Universal H-Series, Low NOx, 400,000 BTU, Natural Gas, Pool and Spa Heater Sku #: H400FDN (1 rating)	Hayward H250FDN Universal H-Series, Low NOx, 250,000 BTU, Natural Gas, Pool and Spa Heater Sku #: H250FDN (1 rating)	Sta-Rite SR400HD Max-E-Therm, Low NOx, 400,000 BTU, Natural Gas, Heavy Duty, Cupro-Nickel, Pool and Spa Heater Sku #: SR400HD	Hayward H400FDP Universal H-Series, Low NOx, 400,000 BTU, Propane Gas, Pool and Spa Heater Sku #: H400FDP
Price: $1,874.99 Free Shipping!	Price: $1,519.99 Free Shipping!	Price: $2,099.99 Free Shipping!	Price: $1,805.99 Free Shipping!

Pentair 460736 MasterTemp, Low NOx, 400,000 BTU, Natural Gas, Pool and Spa Heater Sku #: 460736 (2 ratings)	Pentair 460732 MasterTemp, Low NOx, 250,000 BTU, Natural Gas, Pool and Spa Heater Sku #: 460732	Sta-Rite SR333NA Max-E-Therm, Low NOx, 333,000 BTU, Natural Gas, Pool and Spa Heater Sku #: SR333NA	Sta-Rite SR400NA Max-E-Therm, Low NOx, 400,000 BTU, Natural Gas, Pool and Spa Heater Sku #: SR400NA (1 rating)
Price: $1,854.99 Free Shipping!	Price: $1,525.99 Free Shipping!	Price: $1,699.99 Free Shipping!	Price: $1,939.99 Free Shipping!

Pentair 460737 MasterTemp, Low NOx, 400,000 BTU, Propane Gas, Pool and Spa Heater Sku #: 460737 (1 rating)	Sta-Rite SR200NA Max-E-Therm, Low NOx, 200,000 BTU, Natural Gas, Pool and Spa Heater Sku #: SR200NA	Hayward H250FDP Universal H-Series, Low NOx, 250,000 BTU, Propane Gas, Pool and Spa Heater Sku #: H250FDP	Hayward H350FDN Universal H-Series, Low NOx, 350,000 BTU, Natural Gas, Pool and Spa Heater Sku #: H350FDN
Price: $1,919.99 Free Shipping!	Price: $1,501.99 Free Shipping!	Price: $1,444.99 Free Shipping!	Price: $1,632.99 Free Shipping!

Hayward H350FDP Universal H-Series, Low NOx, 350,000 BTU, Propane Gas, Pool and Spa Heater Sku #: H350FDP	Sta-Rite SR333HD Max-E-Therm, Low NOx, 333,000 BTU, Natural Gas, Heavy Duty, Cupro-Nickel, Pool and Spa Heater Sku #: SR333HD	Raypak Digital Cupro-Nickel Pool Heater with Cupro-Nickel Heat Exchanger, Electronic Ignition, Digital Thermostat for Residential Pools 29 Options Available	Hayward H150FDN Universal H-Series, Low NOx, 150,000 BTU, Natural Gas, Pool and Spa Heater Sku #: H150FDN
Price: $1,693.99 Free Shipping!	Price: $2,000.99 Free Shipping!	Price: as low as $1,467.99 Free Shipping!	Price: $1,293.99 Free Shipping!

Jandy LRZ175EN Legacy LRZ 175,000 BTU, Digital, Natural Gas, Polymer Header Pool and Spa Heater Sku #: LRZ175EN	Jandy LRZ250EN Legacy LRZ 250,000 BTU, Digital, Natural Gas, Polymer Header Pool and Spa Heater Sku #: LRZ250EN (1 rating)	Hayward H300FDN Universal H-Series, Low NOx, 300,000 BTU, Natural Gas, Pool and Spa Heater Sku #: H300FDN (1 rating)	Hayward H200FDP Universal H-Series, Low NOx, 200,000 BTU, Propane Gas, Pool and Spa Heater Sku #: H200FDP
Price: $1,378.99 Free Shipping!	Price: $1,549.99 Free Shipping!	Price: $1,700.99 Free Shipping!	Price: $1,374.99 Free Shipping!

Jandy LRZ400EN Legacy LRZ 399,000 BTU, Digital, Natural Gas, Polymer Header Pool and Spa Heater Sku #: LRZ400EN	Raypak Digital Copper Pool Heater with Copper Heat Exchanger, Electronic Ignition, Digital Thermostat for Residential Pools 28 Options Available	Jandy LXi400NN LXI, Low NOx, 400,000 BTU, Natural Gas, Pool and Spa Heater Sku #: LXi400NN	Jandy LXi400P LXI, Low NOx, 400,000 BTU, Propane Gas, Polymer Header Pool and Spa Heater Sku #: LXi400P (1 rating)
Price: $1,975.99 Free Shipping!	Price: as low as $1,323.99 Free Shipping!	Price: $2,201.99 Free Shipping!	Price: $2,107.99 Free Shipping!

Jandy LXi300N LXI, Low NOx, 300,000 BTU, Natural Gas, Polymer Header Pool and Spa Heater Sku #: LXi300N	Jandy LXi400N LXI, Low NOx, 400,000 BTU, Natural Gas, Polymer Header Pool and Spa Heater Sku #: LXi400N	Jandy LRZ125EN Legacy LRZ 125,000 BTU, Digital, Natural Gas, Polymer Header Pool and Spa Heater Sku #: LRZ125EN (2 ratings)	Jandy LRZ325EP Legacy LRZ 325,000 BTU, Digital, Propane Gas, Polymer Header Pool and Spa Heater Sku #: LRZ325EP
Price: $2,122.99 Free Shipping!	Price: $2,145.99 Free Shipping!	Price: $1,138.99 Free Shipping!	Price: $1,625.99 Free Shipping!

Pentair 460806 MasterTemp, Low NOx, 250,000 BTU, Natural Gas, Heavy Duty, Cupro-Nickel, Pool and Spa Heater Sku #: 460806	Raypak Versa 130 Above Ground Pool / Spa Heater, 130,000 BTUs, with Polymer Headers 21 Options Available	Jandy LRZ325EN Legacy LRZ 325,000 BTU, Digital, Natural Gas, Polymer Header Pool and Spa Heater Sku #: LRZ325EN	Pentair 460734 MasterTemp, Low NOx, 300,000 BTU, Natural Gas, Pool and Spa Heater Sku #: 460734
Price: $1,935.99 Free Shipping!	Price: as low as $979.99 Free Shipping!	Price: $1,708.99 Free Shipping!	Price: $1,745.99 Free Shipping!

Jandy LRZ400EP Legacy LRZ 399,000 BTU, Digital, Propane Gas, Polymer Header Pool and Spa Heater Sku #: LRZ400EP (1 rating)	Jandy LRZ325ENN Legacy LRZ 325,000 BTU, Digital, Natural Gas, Cupro-Nickel Tubes, Polymer Header Pool and Spa Heater Sku #: LRZ325ENN	Jandy LRZ400EPN Legacy LRZ 399,000 BTU, Digital, Propane Gas, Cupro-Nickel Tubes, Polymer Header Pool and Spa Heater Sku #: LRZ400EPN	Jandy LRZ250ENN Legacy LRZ 250,000 BTU, Digital, Natural Gas, Cupro-Nickel Tubes, Polymer Header Pool and Spa Heater Sku #: LRZ250ENN
Price: $1,840.99 Free Shipping!	Price: $1,903.99 Free Shipping!	Price: $2,135.99 Free Shipping!	Price: $1,788.99 Free Shipping!

Hayward H200FDN Universal H-Series, Low NOx, 200,000 BTU, Natural Gas, Pool and Spa Heater Sku #: H200FDN	Hayward H400FDNASME Universal H-Series, Low NOx, 400,000 BTU, Natural Gas, ASME Pool and Spa Heater Sku #: H400FDNASME	Jandy LRZ400ENN Legacy LRZ 399,000 BTU, Digital, Natural Gas, Cupro-Nickel Tubes, Polymer Header Pool and Spa Heater Sku #: LRZ400ENN	Jandy LXi250P LXI, Low NOx, 250,000 BTU, Propane Gas, Polymer Header Pool and Spa Heater Sku #: LXi250P
Price: $1,444.99 Free Shipping!	Price: $2,336.99 Free Shipping!	Price: $2,060.99 Free Shipping!	Price: $1,596.99 Free Shipping!

Pentair 460771 MasterTemp, Low NOx, 250,000 BTU, Natural Gas, ASME Pool and Spa Heater Sku #: 460771	Pentair 460735 MasterTemp, Low NOx, 300,000 BTU, Propane Gas, Pool and Spa Heater Sku #: 460735	Jandy LRZ400ENC Legacy LRZ 399,000 BTU, Digital, Natural Gas, Bronze Headers, Copper Tubes, ASME Certified Pool and Spa Heater Sku #: LRZ400ENC	Pentair 460733 MasterTemp, Low NOx, 250,000 BTU, Propane Gas, Pool and Spa Heater Sku #: 460733
Price: $2,078.99 Free Shipping!	Price: $1,656.99 Free Shipping!	Price: $2,108.99 Free Shipping!	Price: $1,531.99 Free Shipping!

Jandy LXi250N LXI, Low NOx, 250,000 BTU, Natural Gas, Polymer Header Pool and Spa Heater Sku #: LXi250N	Raypak ASME Digital Cupro-Nickel Commercial Pool Heater with Copper Heat Exchanger, Electronic Ignition, Digital Thermostat 28 Options Available	Jandy LXI250NN LXI, Low NOx, 250,000 BTU, Natural Gas, Polymer Header, Cupro-Nickel Heat Exchanger, Pool and Spa Heater Sku #: LXI250NN	Hayward H150FDP Universal H-Series, Low NOx, 150,000 BTU, Propane Gas, Pool and Spa Heater Sku #: H150FDP
Price: $1,728.99 Free Shipping!	Price: as low as $1,826.99 Free Shipping!	Price: $1,938.99 Free Shipping!	Price: $1,356.99 Free Shipping!

	Blog Resource Center	Read More
Jandy Pool Heater Comparison
Swimming Pool Heat Pump and Pool Heater Comparison Guide
Complete Pool Heater Comparison Chart Helps You Find Your Match

Above Ground Pools

Automatic Controls

Chemicals

Cleaners

Covers

Filters

Heat Pumps

Heaters

Lights

Liners

Maintenance

Motors

Parts

Pumps

Replacement Filter Cartridges

Replacement Salt Cells

Salt Chlorinators

See All Categories

Spa Parts

Spas / Hot Tubs

Alternative Sanitizers

Chemicals

Cover Lifts

Covers

Heaters

Jets

Lights

Mineral Sanitizing Systems

Ozonators

Pumps

Retrofit Kits

Steps

Vacuums

See All Categories

Hayward H400FDN Universal H-Series, Low NOx, 400,000 BTU, Natural Gas, Pool and Spa Heater - H400FDN