/
/
Parts town. Get real parts faster

Shopping Cart

Skip to NavigationSkip to Content
Loading...
Loading...
USD
Multi-SKU Order
LoginRegister
Parts town. Get real parts faster

Find Equipment Manuals

Loading...
Loading...
  1. Home
  2. /
  3. Reznor
  4. /
  5. B 125

Reznor B 125 Parts & Manuals

Manufacturer:

Model #:

Reznor

B 125

Unit Heater

Unit Heater

get special offers & news from parts town

+52 558.957.7295
Loading...
Loading...
visa
visa
mastercard
mastercard
american-express
american-express
discover
discover
paypal
paypal
© 2026 Parts Town. All rights reserved.
Loading...
visa
visa
mastercard
mastercard
american-express
american-express
discover
discover
paypal
paypal

Stock Up on Real OEM HVAC Parts for the Summer Season! SHOP NOW

Call: +52 558.957.7295
Hvac Parts
TECHTOWN
Track My Order
HVAC Parts Are Here!

HVAC Parts Are Here!

Shop the top brands in the industry.

Take Parts Town on the Go!

Take Parts Town on the Go!

Download the industry's #1 app today!

Find the parts you need to fix equipment!

Find the parts you need to fix equipment!

Based on data from techs, powered by AI!

We are ready to help!

We are ready to help!

We offer customer service support in Spanish

Flat rate shipping anywhere in Mexico $49.99

Flat rate shipping anywhere in Mexico $49.99

Inclusive of duties and brokerage.

Find the parts you need to fix equipment!

Find the parts you need to fix equipment!

Based on data from techs, powered by AI!

Help Desk

  • Contact Us
  • Shipping
  • Taxes And Fees
  • Returns
  • FAQ

Inside Parts Town

  • About Us
  • Careers
  • Our Difference
  • Resource Center
  • Parts Town Blog
  • techtown
  • International

Technology and Innovations

  • Parts Town App
  • Parts In Town
  • Serial Number Lookup
  • Smart Manuals
  • Website Features
  • Terms of Use
  • Privacy Policy
  • Privacy Request

Part Category

  • Baffles(1)
  • Bearings & Bushings(2)
  • Belts, Pulleys & Sheaves(8)
  • Brackets & Retainers(10)
  • Burners(5)
  • Caps & Plugs(2)
  • Casters & Wheels(1)
  • Clamps & Clips(1)
  • Contactors(3)
  • Controls(2)
  • Conversion Kits(2)
  • Decals, Labels & Overlays(2)
  • Disconnects, Couplings & Collars(3)
  • Elements, Heaters & Platens(1)
  • Fan & Blower Motors(8)
  • Fan Blades & Blower Wheels(1)
  • Filters, Screens & Driers(5)
  • Fuses, Blocks & Holders(2)
  • Gaskets & Seals(1)
  • Holders & Supports(2)
  • Hoses, Pipes & Tubing(4)
  • Ignition Modules(2)
  • Ignitors & Electrodes(1)
  • Nuts, Bolts & Screws(17)
  • Orifices(3)
  • Panels, Covers & Lids(15)
  • Pilot Burners(2)
  • Probes & Sensors(1)
  • Pumps & Motors(5)
  • Relays(3)
  • Rods, Shafts & Pins(1)
  • Shields & Guards(4)
  • Springs(1)
  • Switches & Buttons(2)
  • Terminal Blocks(2)
  • Thermocouples & Thermopiles(1)
  • Thermostats & High Limits(5)
  • Transformers(5)
  • Valves, Solenoids & Fittings(10)
  • Washers, Rings & Spacers(4)
  • Wires, Cables & Hardware(9)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

Part Category

  • Baffles(1)
  • Bearings & Bushings(2)
  • Belts, Pulleys & Sheaves(8)
  • Brackets & Retainers(10)
  • Burners(5)
  • Caps & Plugs(2)
  • Casters & Wheels(1)
  • Clamps & Clips(1)
  • Contactors(3)
  • Controls(2)
  • Conversion Kits(2)
  • Decals, Labels & Overlays(2)
  • Disconnects, Couplings & Collars(3)
  • Elements, Heaters & Platens(1)
  • Fan & Blower Motors(8)
  • Fan Blades & Blower Wheels(1)
  • Filters, Screens & Driers(5)
  • Fuses, Blocks & Holders(2)
  • Gaskets & Seals(1)
  • Holders & Supports(2)
  • Hoses, Pipes & Tubing(4)
  • Ignition Modules(2)
  • Ignitors & Electrodes(1)
  • Nuts, Bolts & Screws(17)
  • Orifices(3)
  • Panels, Covers & Lids(15)
  • Pilot Burners(2)
  • Probes & Sensors(1)
  • Pumps & Motors(5)
  • Relays(3)
  • Rods, Shafts & Pins(1)
  • Shields & Guards(4)
  • Springs(1)
  • Switches & Buttons(2)
  • Terminal Blocks(2)
  • Thermocouples & Thermopiles(1)
  • Thermostats & High Limits(5)
  • Transformers(5)
  • Valves, Solenoids & Fittings(10)
  • Washers, Rings & Spacers(4)
  • Wires, Cables & Hardware(9)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

Reznor 98524 STAT BRACKET

Reznor
  • Mfr Part # 98524
  • Parts Town # REZ98524
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 98664 RESTRICTOR F75 & 100 OPT CA1

Reznor
  • Mfr Part # 98664
  • Parts Town # REZ98664
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 98665 RESTRICTOR F25 & 50 OPT CA1

Reznor
  • Mfr Part # 98665
  • Parts Town # REZ98665
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 99351 LEFT HINGE PIN ASSEMBLY F/FE SER

Reznor
  • Mfr Part # 99351
  • Parts Town # REZ99351
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 99835 BACK PANEL B200

Reznor
  • Mfr Part # 99835
  • Parts Town # REZ99835
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 257472 Ignition Module Conversion Kit, Natural, 24VAC

Reznor
  • Mfr Part # 257472
  • Parts Town # REZ257472
  • Quantity0

Obsolete, replaced by REZRZ257472

Reznor 100393 BUSHING SR-6N3-4 BLACK #1200

Reznor
  • Mfr Part # 100393
  • Parts Town # REZ100393
  • Quantity0

Obsolete, replaced by REZRZ100393

Reznor 100799 Limit Switch, Auto Reset, L150-25F

Reznor
  • Mfr Part # 100799
  • Parts Town # REZ100799
  • Quantity0

Obsolete, replaced by REZRZ100799

Reznor 101608 ALUMINUMFILTER 20 X 20 X 1"

Reznor
  • Mfr Part # 101608
  • Parts Town # REZ101608
  • Quantity0

Obsolete, replaced by REZRZ101608

Reznor 101621 PERM ALUMINUMFILTER 20 X 20 X 2

Reznor
  • Mfr Part # 101621
  • Parts Town # REZ101621
  • Quantity0

Obsolete, replaced by REZRZ101621

Reznor 102248 MULTIPLE HEATER CONTROLLER

Reznor
  • Mfr Part # 102248
  • Parts Town # REZ102248
  • Quantity0

Obsolete, replaced by REZRZ102248

Reznor 102474 INLET GUARD RI-11189AA 30-100

Reznor
  • Mfr Part # 102474
  • Parts Town # REZ102474
  • Quantity0

Obsolete, replaced by REZRZ102474

Reznor 102627 Motor, Blower, 120/208-230 Volt, 1 PH, 1/2 HP, 1725 RPM

Reznor
  • Mfr Part # 102627
  • Parts Town # REZ102627
  • Quantity0

Obsolete, replaced by REZRZ102627

Reznor 102708 Transformer, 120 to 24 Volt, 50/60HZ, 35VA

Reznor
  • Mfr Part # 102708
  • Parts Town # REZ102708
  • Quantity0

Obsolete, replaced by REZRZ102708

Reznor 103152 #6X1-3/4 IND HEX TYPE B SCREW

Reznor
  • Mfr Part # 103152
  • Parts Town # REZ103152
  • Quantity0

Obsolete, replaced by REZRZ103152

Reznor 103495 Transformer, 480 to 24 Volt, 35VA

Reznor
  • Mfr Part # 103495
  • Parts Town # REZ103495
  • Quantity0

Obsolete, replaced by REZRZ103495

Reznor 103500 Transformer, 208/240 to 24 Volt, 50/60HZ, 35VA

Reznor
  • Mfr Part # 103500
  • Parts Town # REZ103500
  • Quantity0

Obsolete, replaced by REZRZ103500

Reznor 104968 OUTER RIGHT SIDE PANEL F25,50

Reznor
  • Mfr Part # 104968
  • Parts Town # REZ104968
  • Quantity0

Obsolete, replaced by REZRZ104968

Reznor 104969 LT OUTER SD PANEL F25-100

Reznor
  • Mfr Part # 104969
  • Parts Town # REZ104969
  • Quantity0

Obsolete, replaced by REZRZ104969

Reznor 112752 Limit Switch/Thermostat, Blocked Vent, L225F, Manual Reset

Reznor
  • Mfr Part # 112752
  • Parts Town # REZ112752
  • Quantity0

Obsolete, replaced by REZRZ112752

Reznor 113275 Screw, Slotted Hex Head, 10-32 x 1/2"

Reznor
  • Mfr Part # 113275
  • Parts Town # REZ113275
  • Quantity0

Obsolete, replaced by REZRZ113275

Reznor 121275 Limit Switch/Thermostat, Blocked Vent, 275F, Manual Reset

Reznor
  • Mfr Part # 121275
  • Parts Town # REZ121275
  • Quantity0

Obsolete, replaced by REZRZ121275

Reznor 121341 BLOCKED FLUE SWITCH GASKET

Reznor
  • Mfr Part # 121341
  • Parts Town # REZ121341
  • Quantity0

Obsolete, replaced by REZRZ121341

Reznor 131450 Thermal Cutoff/Limit Control, 306F/152C

Reznor
  • Mfr Part # 131450
  • Parts Town # REZ131450
  • Quantity0

Obsolete, replaced by REZRZ131450

789