Welcome to Our New & Improved Website!
Water Heaters Only - We Are Your Water & Air Experts
Sign In
Water Heaters Only
763-557-1117orders@wh2only.com

All Products

About Us

  • Who We Are
  • Solutions
  • Training
  • Resources
  • Shop Our Products
  • Promotions

Our Location

Our Location

© 2026 Water Heaters Only. All rights reserved.

  • Resources
  • Promotions
  • Find a Pro

Categories

  • All Products
  • Boilers
    • Condensing35
    • Non-Condensing12
  • HVAC
    • Air Conditioners
      • 2-Stage AC8
      • Inverter AC4
      • Single Stage AC25
    • Air Handlers7
    • Ductless Mini-Splits53
    • Evaporators Coil66
    • Gas Furnaces
      • 80% Furnaces16
      • 90% Furnaces34
    • Heat Pumps
      • Inverter Heat Pump11
      • Single Stage Heat Pump7
    • Packaged Units
      • AC Only
      • Gas Electric
      • Heat Pump
    • Venting9
  • HVAC Accessories
    • Ducting9
    • Equipment Pads & Stands10
    • Indoor Air Quality
      • Air Cleaners
      • Air Exchange Ventilators
        • Energy Recovery Ventilators1
        • Heat Recovery Ventilators
      • Air Filters
      • Dehumidifiers
      • Humidifiers
    • Line Sets10
    • Thermostats4
  • Hydronic Accessories
    • Baseboard34
    • Boiler Stands1
    • Controls & Sensors3
    • Glycol & Chemicals2
    • Hydraulic Separators
    • Hydronic Expansion Tanks5
    • Manifolds17
    • Radiant Tubing & Fittings18
    • Zone Valves4
  • Parts
    • Boiler Parts82
    • Electric Water Heater Parts201
    • Gas Water Heater Parts478
    • HVAC Parts122
      • A/C & Heat Pump Parts1
      • Furnace Parts7
    • Tankless Water Heater Parts131
    • Water Softener Parts30
  • Plumbing Accessories
    • Disposers4
    • Domestic Expansion Tanks9
    • Drain Pans & Stands11
    • Fittings & Valves61
  • Pumps
    • Booster Pumps5
    • Centrifugal Pumps42
    • Condensate Pumps3
    • Effluent/Sewage Pumps9
    • Pump Parts & Accessories58
    • Sump Pump19
  • Water Heaters
    • Heat Pump Electric Hybrid15
    • Manufactured Housing6
    • Point of Use26
    • Tank Type: Electric35
    • Tank Type: Gas159
    • Tankless Electric4
    • Tankless Gas2
    • Volume Water Heaters2
    • Water Heater Storage Tanks7
  • Water Treatment5
    • Condensate Neutralizer15
    • Pressure Tanks8
    • Reverse Osmosis7
    • Water Filters13
    • Water Softeners & Conditioners25
Items 1537-1548 of 2494
Items Per Page

175 MBH Input Cast Iron MI-e-series boiler with circulator Hydrostat IC Multi function Boiler Control Natural Draft Venting Atmospheric Natural Gas

MI-e-06-SPRK-WP-N

Login for pricing
Unavailable
FIND a local Pro

210 MBH Input Cast Iron MI-e-series boiler with circulator Hydrostat IC Multi function Boiler Control Natural Draft Venting Atmospheric Natural Gas

MI-e-07-SPRK-WPC-N

Login for pricing
Unavailable
FIND a local Pro

245 MBH Input Cast Iron MI-e-series boiler with circulator Hydrostat IC Multi function Boiler Control Natural Draft Venting Atmospheric Natural Gas

MI-e-08-SPRK-WPC-N

Login for pricing
Unavailable

** REPLACED BY MI-X-09-NG ** 280 MBH Input Cast Iron MI-e-series boiler with circulator Hydrostat IC Multi function Boiler Control Natural Draft Venting Atmospheric Natural Gas

MI-e-09-SPRK-WPC-N

Login for pricing
Unavailable

280 MBH Input Cast Iron MI-x-series 84% boiler with Hydrostat IC Multi function Boiler Control and integrated LWCO with auto reset, Natural Draft Venting Atmospheric Natural Gas

MI-x-09-NG

Login for pricing
Unavailable

Non-Condensing

162.5 MBH Input Cast Iron MIH-II-series boiler with circulator Natural Draft Venting Atmospheric Natural Gas

MIHII06SPRKWPCN

Login for pricing
Unavailable

8DS VARIANT - BASES, SUPPORTS AND UPRIGHT LEGS @ 60" ONLY - NO WARRANTY ON INCOMPLETE SYSTEM

MIR8DS

Login for pricing
Unavailable

9" Industrial thermometer, 0-120*F Range 3-1/2" stem, spirit fill

MJCSX935-35

Login for pricing
Unavailable

Marlo Warranty Tank

MRL-WARRTANK

Login for pricing
Unavailable

Water Softener Parts

BRINE LINE ASSY - 5FT - NO INSERTS

MRL1227021

Login for pricing
Unavailable

Water Filters

R.O. membrane replacement

MRLA2069018

Login for pricing
Unavailable

Water Softener Parts

O-Ring for #20BB Housing

MRLA2077152

Login for pricing
Unavailable
1...127128
129
130
131
...208
280 MBH Input Cast Iron MI-x-series 84% boiler with Hydrostat IC Multi function Boiler Control and integrated LWCO with auto reset, Natural Draft Venting Atmospheric Natural Gas
9" Industrial thermometer, 0-120*F Range 3-1/2" stem, spirit fill
Marlo Warranty Tank
R.O. membrane replacement
FIND a local Pro
FIND a local Pro
FIND a local Pro
FIND a local Pro
FIND a local Pro
FIND a local Pro
FIND a local Pro
FIND a local Pro
FIND a local Pro
FIND a local Pro
Out of Stock
Low Stock
Out of Stock
Low Stock
Low Stock
Low Stock
Out of Stock
In Stock
Out of Stock
Low Stock
Low Stock
Out of Stock