Boiler Controls

Enhance your heating system with reliable boiler controls designed for efficiency and safety. Their advanced controls provide precise temperature regulation, improved energy savings, and seamless integration with existing systems. Ideal for both residential and commercial applications, these boiler controls ensure optimal performance and peace of mind. Explore our selection today to find the perfect solution for your heating needs!

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Showing 337–384 of 1196 resultsSorted by popularity

Control Board, Replacement Part, SKU 100351933

Lochinvar & A.O. Smith

SKU: 100351933
$158.93
MSRP: $182.77
You save 15%
Lochinvar & A.O. Smith 100351933 Control Board quantity
Control Board for NKC199 Water Heater Models

Lochinvar & A.O. Smith

SKU: 100346296
$297.21
MSRP: $341.79
You save 15%
Lochinvar & A.O. Smith 100346296 Control Board NKC199 quantity
NKB080 Main Control Board – OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100339969
$283.80
MSRP: $326.37
You save 15%
Lochinvar & A.O. Smith 100339969 NKB080 Main Control Board quantity
Modbus Communication Kit for Compatible Water Heaters

Lochinvar & A.O. Smith

SKU: 100330257
$365.33
MSRP: $420.13
You save 15%
Lochinvar & A.O. Smith 100330257 Modbus Communication Kit quantity
BACnet MTSP Communication Module, SKU 100330256

Lochinvar & A.O. Smith

SKU: 100330256
$376.68
MSRP: $433.18
You save 13%
Lochinvar & A.O. Smith 100330256 BACnet MTSP Communication Module quantity
Outdoor Sensor High Limit, SKU 100327467

Lochinvar & A.O. Smith

SKU: 100327467
$87.36
MSRP: $100.46
You save 15%
Lochinvar & A.O. Smith 100327467 Outdoor Sensor High Limit quantity
Interface Control for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100327465
$182.38
MSRP: $209.74
You save 15%
Lochinvar & A.O. Smith 100327465 Interface Control quantity
Low Water Cut-Off (LWCO) Control Board, SKU 100327204

Lochinvar & A.O. Smith

SKU: 100327204
$738.00
MSRP: $848.70
You save 15%
Lochinvar & A.O. Smith 100327204 LWCO Board quantity
Low Water Probe for Boiler Safety & Protection

Lochinvar & A.O. Smith

SKU: 100327199
$321.99
MSRP: $370.29
You save 15%
Lochinvar & A.O. Smith 100327199 Low Water Probe quantity
Electronic Control Board, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100327054
$443.56
MSRP: $510.09
You save 15%
Lochinvar & A.O. Smith 100327054 Electronic Control Board quantity
Low Water Cut-Off (LWCO) for Boiler Safety Control

Lochinvar & A.O. Smith

SKU: 100320791
$326.11
MSRP: $375.03
You save 15%
Lochinvar & A.O. Smith 100320791 Low Water Cut-Off (LWCO) quantity
K HVHP UIM/Control Board Assembly, SKU 100313171

Lochinvar & A.O. Smith

SKU: 100313171
$242.44
MSRP: $278.81
You save 15%
Lochinvar & A.O. Smith 100313171 K HVHP UIM/Control Board Assembly quantity
K Service UIM Ethernet Module for Lochinvar & A.O. Smith

Lochinvar & A.O. Smith

SKU: 100312669
$566.58
MSRP: $651.57
You save 15%
Lochinvar & A.O. Smith 100312669 K Service UIM Ethernet Module quantity
Low Water Cut-Off Probe, Replacement Part

Lochinvar & A.O. Smith

SKU: 100309672
$75.04
MSRP: $86.30
You save 15%
Lochinvar & A.O. Smith 100309672 Low Water Cut-Off Probe quantity
Air Pressure Switch -1.75″WC for Lochinvar & A.O. Smith

Lochinvar & A.O. Smith

SKU: 100308926
$47.55
MSRP: $54.68
You save 15%
Lochinvar & A.O. Smith 100308926 Air Pressure Switch -1.75"WC quantity
LWCO Probe Extension 7-1/2″ for Boiler Safety Systems

Lochinvar & A.O. Smith

SKU: 100306918
$41.72
MSRP: $47.98
You save 15%
Lochinvar & A.O. Smith 100306918 LWCO Probe Extension 7-1/2" quantity
LWCO Probe Kit for Boiler Low Water Cut-Off Safety

Lochinvar & A.O. Smith

SKU: 100306917
$251.66
MSRP: $289.41
You save 15%
Lochinvar & A.O. Smith 100306917 LWCO Probe Kit quantity
OEM Replacement Control Board for WHB399 Water Heaters

Lochinvar & A.O. Smith

SKU: 100304165
$378.00
MSRP: $434.70
You save 15%
Read more
Control Board for WHB285 Water Heater

Lochinvar & A.O. Smith

SKU: 100304140
$378.00
MSRP: $434.70
You save 15%
Lochinvar & A.O. Smith 100304140 Control Board WHB285 quantity
Replacement Control Board for KHB/WHB110 Models

Lochinvar & A.O. Smith

SKU: 100304136
$378.00
MSRP: $434.70
You save 15%
Lochinvar & A.O. Smith 100304136 Control Board KHB/WHB110 quantity
Main Control Board for 1250-4000 Series Commercial Units

Lochinvar & A.O. Smith

SKU: 100297103
$1,290.00
MSRP: $1,483.50
You save 15%
Lochinvar & A.O. Smith 100297103 Main Control Board 1250-4000 quantity
Maintenance Control Board for Lochinvar & A.O. Smith Units

Lochinvar & A.O. Smith

SKU: 100296631
$791.00
MSRP: $909.65
You save 15%
Lochinvar & A.O. Smith 100296631 Maintenance Control Board quantity
2.5″ WC Pressure Switch | SKU 100289706

Lochinvar & A.O. Smith

SKU: 100289706
$152.33
MSRP: $175.18
You save 15%
Lochinvar & A.O. Smith 100289706 2.5"WC Pressure Switch quantity
Control Board ECS937 SBN/L Replacement Part

Lochinvar & A.O. Smith

SKU: 100288439
$641.00
MSRP: $737.15
You save 15%
Lochinvar & A.O. Smith 100288439 Control Board ECS937 SBN/L quantity
Main Control Board for Lochinvar & A.O. Smith Units

Lochinvar & A.O. Smith

SKU: 100286923
$567.00
MSRP: $652.05
You save 15%
Lochinvar & A.O. Smith 100286923 Main Control Board quantity
K FBA Natural Gas 100-Gallon Cast Iron Boiler

Lochinvar & A.O. Smith

SKU: 100281562
$215.50
MSRP: $247.83
You save 15%
Lochinvar & A.O. Smith 100281562 K FBA NAT 100GAL Cast Iron Boiler quantity
User Interface Module, UIM VER 2.02, PRGM VER 2.6.0.0

Lochinvar & A.O. Smith

SKU: 100278242
$367.39
MSRP: $422.50
You save 15%
Lochinvar & A.O. Smith 100278242 UIM VER 2.02 PRGM VER 2.6.0.0 quantity
Interface Control for Lochinvar & A.O. Smith Systems

Lochinvar & A.O. Smith

SKU: 100277816
$212.73
MSRP: $244.64
You save 15%
Lochinvar & A.O. Smith 100277816 Interface Control quantity
LWCO Boot Replacement Component

Lochinvar & A.O. Smith

SKU: 100277801
$21.08
MSRP: $24.24
You save 15%
Lochinvar & A.O. Smith 100277801 LWCO Boot quantity
Low Water Cut Off, Probe — OEM Boiler Safety Component

Lochinvar & A.O. Smith

SKU: 100277799
$107.81
MSRP: $123.98
You save 15%
Lochinvar & A.O. Smith 100277799 Low Water Cut Off, Probe quantity
K Control for Lochinvar & A.O. Smith FB751-1251

Lochinvar & A.O. Smith

SKU: 100277781
$1,243.00
MSRP: $1,429.45
You save 15%
Lochinvar & A.O. Smith 100277781 K Control FB751-1251 quantity
Interface Board for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100277771
$408.53
MSRP: $469.81
You save 15%
Lochinvar & A.O. Smith 100277771 Interface Board quantity
K Control for FB1501-2001 Boiler/Water Heater Units

Lochinvar & A.O. Smith

SKU: 100277770
$1,178.00
MSRP: $1,354.70
You save 15%
Read more
Low Water Cut-Off Probe, SKU 100277756

Lochinvar & A.O. Smith

SKU: 100277756
$73.93
MSRP: $85.02
You save 15%
Lochinvar & A.O. Smith 100277756 LWCO Probe quantity
ESC Control Board with Mod-Bus Communication

Lochinvar & A.O. Smith

SKU: 100277753
$762.00
MSRP: $876.30
You save 15%
Lochinvar & A.O. Smith 100277753 ESC Control Board with Mod-Bus quantity
Integrated Control for Lochinvar & A.O. Smith Equipment

Lochinvar & A.O. Smith

SKU: 100277717
$1,119.36
MSRP: $1,287.26
You save 15%
Lochinvar & A.O. Smith 100277717 Integrated Control quantity
120/240V-24V 50/60Hz 150VA Control Transformer

Lochinvar & A.O. Smith

SKU: 100276897
$632.00
MSRP: $726.80
You save 15%
Lochinvar & A.O. Smith 100276897 120/240V-24V 50/60Hz 150VA Transformer quantity
NKC110N OEM Replacement Main Control Board

Lochinvar & A.O. Smith

SKU: 100275507
$276.58
MSRP: $318.07
You save 15%
Lochinvar & A.O. Smith 100275507 NKC110N Main Board quantity
BACnet Interface Board MTR-01, SKU 100275047

Lochinvar & A.O. Smith

SKU: 100275047
$414.95
MSRP: $477.19
You save 15%
Lochinvar & A.O. Smith 100275047 BACnet Interface Board MTR-01 quantity
Integrated Hi-Altitude Control Board – KH285 Service Replacement

Lochinvar & A.O. Smith

SKU: 100266997
$650.53
MSRP: $748.11
You save 15%
Lochinvar & A.O. Smith 100266997 Integrated Hi-Altitude Control Board KH285 SVC quantity
Integrated Control Board – KH285 Series Service Replacement

Lochinvar & A.O. Smith

SKU: 100266982
$695.00
MSRP: $799.25
You save 15%
Lochinvar & A.O. Smith 100266982 Integrated Control Board KH285 Service quantity
Integrated Control Board – KH199 Series Service Replacement

Lochinvar & A.O. Smith

SKU: 100266980
$637.00
MSRP: $732.55
You save 15%
Lochinvar & A.O. Smith 100266980 Integrated Control Board KH199 Service quantity
Probe for Low Water Cutoff, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208662
$75.04
MSRP: $86.30
You save 15%
Lochinvar & A.O. Smith 100208662 Probe for Low Water Cutoff quantity
Flow Switch with 3″ Paddle for Boiler Protection

Lochinvar & A.O. Smith

SKU: 100208661
$305.48
MSRP: $351.30
You save 15%
Lochinvar & A.O. Smith 100208661 Flow Switch w/ 3" Paddle quantity
Manual Reset Low Water Cutoff for Boilers

Lochinvar & A.O. Smith

SKU: 100208652
$191.95
MSRP: $220.74
You save 15%
Lochinvar & A.O. Smith 100208652 Manual Reset Low Water Cutoff quantity
1/4″ Immersion Sensor Stat for Boiler & Hydronic Systems

Lochinvar & A.O. Smith

SKU: 100208563
$69.44
MSRP: $79.86
You save 15%
Lochinvar & A.O. Smith 100208563 1/4" Immersion Sensor Stat quantity
Premix Gas/Air Ratio Sensor ARM – OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100208558
$79.53
MSRP: $91.46
You save 15%
Lochinvar & A.O. Smith 100208558 Premix Gas/Air Ratio Sensor ARM quantity
Prepurge Relay – 24VAC

Lochinvar & A.O. Smith

SKU: 100208511
$158.93
MSRP: $182.77
You save 15%
Lochinvar & A.O. Smith 100208511 Prepurge Relay - 24VAC quantity

Boiler Controls

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