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Boiler (139)
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Control Module (2)
Flame Sensor (2)
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Laars

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Founded in 1948, LAARS designs and manufactures high efficiency residential and commercial hydronic boilers, volume water heaters and commercial pool heaters at their Rochester NH, USA headquarters.
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Product Image of Hot Surface Ignitor w/ Gasket, 2400-286
Hot Surface Ignitor w/ Gasket, 2400-286
SKU: 2400-286
Laars
SKU: 2400-286
Brand: Laars
(11)
$99.45 each
In Stock
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Product Image of Indoor/Outdoor Flow Switch Kit, RE0013000
Indoor/Outdoor Flow Switch Kit, RE0013000
SKU: RE0013000
Laars
SKU: RE0013000
Brand: Laars
(3)
$287.10 each
In Stock
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Product Image of Hot Surface Ignitor w/ Gasket, RW2002300
Hot Surface Ignitor w/ Gasket, RW2002300
SKU: RW2002300
Laars
SKU: RW2002300
Brand: Laars
(4)
$66.40 each
In Stock
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Product Image of Roll Out Safety Switch w/ Manual Reset, E2103200
Roll Out Safety Switch w/ Manual Reset, E2103200
SKU: E2103200
Laars
SKU: E2103200
Brand: Laars
(3)
$20.85 each
In Stock
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Product Image of Ignitor w/Gasket, R2069300
Ignitor w/Gasket, R2069300
SKU: R2069300
Laars
SKU: R2069300
Brand: Laars
(3)
$71.89 each
In Stock
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Product Image of Flame Sensor w/Gasket, R2069200
Flame Sensor w/Gasket, R2069200
SKU: R2069200
Laars
SKU: R2069200
Brand: Laars
$81.34 each
In Stock
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Product Image of MFTCW199, 181,000 BTU Output FT Series High Efficiency Wall Mount Combi Boiler (NG/LP)
$2,922.50 each
In Stock
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Product Image of MFTHW100, 93,000 BTU Output FT Series High Efficiency Wall Mount Heat Only Boiler (NG/LP)
$2,202.01 each
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Product Image of L6008G1009 130/230F Aquastat, RE0093200
L6008G1009 130/230F Aquastat, RE0093200
SKU: RE0093200
Laars
SKU: RE0093200
Brand: Laars
(4)
$275.95 each
In Stock
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Product Image of PCB Temp Control Module, RE2344300
PCB Temp Control Module, RE2344300
SKU: RE2344300
Laars
SKU: RE2344300
Brand: Laars
(2)
$278.30 each
In Stock
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Product Image of Temperature & Pressure Gauge (70-250°F, 0-225 psi), RA0079000
$111.20 each
In Stock
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Product Image of MFTCW140, 129,000 BTU Output FT Series High Efficiency Wall Mount Combi Boiler (NG/LP)
$2,713.97 each
In Stock
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Product Image of JV Temperature Sensor, RE2347600
JV Temperature Sensor, RE2347600
SKU: RE2347600
Laars
SKU: RE2347600
Brand: Laars
(1)
$78.86 each
In Stock
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Product Image of Wire Ignitor Flame Sensor & Gasket, 2400-526
Wire Ignitor Flame Sensor & Gasket, 2400-526
SKU: 2400-526
Laars
SKU: 2400-526
Brand: Laars
(4)
$203.44 each
In Stock
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Product Image of MFTHW199, 181,000 BTU Output FT Series High Efficiency Wall Mount Heat Only Boiler (NG/LP)
$2,588.58 each
In Stock
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Product Image of Gasket Replacement, A2117900
Gasket Replacement, A2117900
SKU: A2117900
Laars
SKU: A2117900
Brand: Laars
$13.20 each
In Stock
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Product Image of Flange Gasket Replacement, S0063700
Flange Gasket Replacement, S0063700
SKU: S0063700
Laars
SKU: S0063700
Brand: Laars
$13.76 each
In Stock
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Product Image of JVH Blower Assembly, R2069600
JVH Blower Assembly, R2069600
SKU: R2069600
Laars
SKU: R2069600
Brand: Laars
(8)
$355.31 each
In Stock
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Product Image of 3 Burner Tray Gasket, S2012700
3 Burner Tray Gasket, S2012700
SKU: S2012700
Laars
SKU: S2012700
Brand: Laars
$11.04 each
In Stock
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Product Image of 3 Burner Assembly, L2012200
3 Burner Assembly, L2012200
SKU: L2012200
Laars
SKU: L2012200
Brand: Laars
$355.09 each
In Stock
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Product Image of SPDT Pressure Switch, 75" WC, RE0240900
SPDT Pressure Switch, 75" WC, RE0240900
SKU: RE0240900
Laars
SKU: RE0240900
Brand: Laars
(2)
$66.96 each
In Stock
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Product Image of UP15-42F, Circulator Pump, 1/25 HP, 115 volt, 2400-005
$322.11 each
In Stock
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Product Image of Combustion Blower Assembly, RA2114200
Combustion Blower Assembly, RA2114200
SKU: RA2114200
Laars
SKU: RA2114200
Brand: Laars
(3)
$945.69 each
In Stock
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Product Image of 1/2" Combination Gas Valve, 24V, RV2017600
1/2" Combination Gas Valve, 24V, RV2017600
SKU: RV2017600
Laars
SKU: RV2017600
Brand: Laars
$226.59 each
In Stock
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Product Image of Pool Heater Pilot Burner, NG, R0061600
Pool Heater Pilot Burner, NG, R0061600
SKU: R0061600
Laars
SKU: R0061600
Brand: Laars
(4)
$90.59 each
In Stock
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Product Image of 4 Port Burner Tray, L2012500
4 Port Burner Tray, L2012500
SKU: L2012500
Laars
SKU: L2012500
Brand: Laars
$442.17 each
In Stock
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Product Image of Ventor Assembly (115V), R2060900
Ventor Assembly (115V), R2060900
SKU: R2060900
Laars
SKU: R2060900
Brand: Laars
(1)
$618.62 each
In Stock
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Product Image of 24V Ignition Module, RE2313900
24V Ignition Module, RE2313900
SKU: RE2313900
Laars
SKU: RE2313900
Brand: Laars
$516.38 each
In Stock
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Product Image of Temperature Control Sensor Kit, R2014800
Temperature Control Sensor Kit, R2014800
SKU: R2014800
Laars
SKU: R2014800
Brand: Laars
$123.13 each
In Stock
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Product Image of Pilot Burner w/ Spark Ignition, RW0034500
Pilot Burner w/ Spark Ignition, RW0034500
SKU: RW0034500
Laars
SKU: RW0034500
Brand: Laars
$252.03 each
In Stock
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Product Image of Pump & Motor, 1/2HP 115V, RA2117202
Pump & Motor, 1/2HP 115V, RA2117202
SKU: RA2117202
Laars
SKU: RA2117202
Brand: Laars
(1)
$1,369.00 each
In Stock
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Product Image of Temperature & Pressure Gauge (70-250°F, 0-90 psi), R0060600
$92.89 each
In Stock
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Product Image of Flame Sensor Ignitor w/ Gasket, R2071500
Flame Sensor Ignitor w/ Gasket, R2071500
SKU: R2071500
Laars
SKU: R2071500
Brand: Laars
(1)
$131.66 each
In Stock
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Product Image of 1/2" NPT Male Aquastat Well, RE2058300
1/2" NPT Male Aquastat Well, RE2058300
SKU: RE2058300
Laars
SKU: RE2058300
Brand: Laars
$84.11 each
In Stock
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Product Image of Flame Sensor Replacement, R2071400
Flame Sensor Replacement, R2071400
SKU: R2071400
Laars
SKU: R2071400
Brand: Laars
$137.53 each
In Stock
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Product Image of Combustion Air Filter, R2014700
Combustion Air Filter, R2014700
SKU: R2014700
Laars
SKU: R2014700
Brand: Laars
(1)
$181.11 each
In Stock
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Product Image of Outlet Water Temperature Sensor Duplex 1/4 NPT, RE2319900
$89.45 each
In Stock
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Product Image of 1/3 HP Pump & Motor Assembly, RA2117201
1/3 HP Pump & Motor Assembly, RA2117201
SKU: RA2117201
Laars
SKU: RA2117201
Brand: Laars
(3)
$1,403.95 each
In Stock
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Product Image of Diagnostic Board, RE2105500
Diagnostic Board, RE2105500
SKU: RE2105500
Laars
SKU: RE2105500
Brand: Laars
$558.51 each
In Stock
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Product Image of Main Gas Burner, L0052500
Main Gas Burner, L0052500
SKU: L0052500
Laars
SKU: L0052500
Brand: Laars
$29.68 each
In Stock
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Product Image of JX-75 63,000 BTU Output Mini-Therm Gas-Fired Hydronic Boiler w/ Pump (0-2,000 FT)
$2,211.34 each
In Stock
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Product Image of Gasket Set (Neotherm), RS2109100
Gasket Set (Neotherm), RS2109100
SKU: RS2109100
Laars
SKU: RS2109100
Brand: Laars
$102.94 each
In Stock
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Product Image of 4-Port Burner Gasket, S2012500
4-Port Burner Gasket, S2012500
SKU: S2012500
Laars
SKU: S2012500
Brand: Laars
$15.06 each
In Stock
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Product Image of Header Gasket w/ Barriers, S0095100
Header Gasket w/ Barriers, S0095100
SKU: S0095100
Laars
SKU: S0095100
Brand: Laars
$48.15 each
In Stock
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Product Image of MFTHW140, 129,000 BTU Output FT Series High Efficiency Wall Mount Heat Only Boiler (NG/LP)
$2,600.09 each
In Stock
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In Stock
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Product Image of PCB Control, RE2344301
PCB Control, RE2344301
SKU: RE2344301
Laars
SKU: RE2344301
Brand: Laars
$296.88 each
In Stock
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Product Image of Pump & Motor Assembly, RA2117203
Pump & Motor Assembly, RA2117203
SKU: RA2117203
Laars
SKU: RA2117203
Brand: Laars
(1)
$1,577.82 each
In Stock
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Product Image of Laars Manifold For Combi Boiler FTCW 140/199, P2134400
$437.86 each
In Stock
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Resources
FAQs, Manuals & Videos
Articles
More About Laars
Founded in 1948, LAARS designs and manufactures high efficiency residential and commercial hydronic boilers, volume water heaters and commercial pool heaters at their Rochester NH, USA headquarters.
Filter & Sort
2,683 items
Reset

SORT

Top Sellers
Default
Price ▲
Price ▼

Product Availability

Show In Stock Only (401)

Product Type

Boiler (139)
Boiler Part (2452)
Tankless Heater (4)
Gas Valve (1)
Ignitor (11)
Miscellaneous (22)
ABS Fitting (1)
Control Board (1)
Control Module (2)
Flame Sensor (2)
See More

Price Range

$1 to $5 (57)
$5 to $10 (64)
$10 to $15 (65)
$15 to $20 (76)
$20 to $25 (55)
$25 to $30 (83)
$30 to $35 (84)
$35 to $40 (85)
$40 to $45 (65)
$45 to $50 (49)
See More
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