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10 bestCombi Boilersof February 2025

112M consumers helped this year.

1

RINNAI Condensing Gas Boiler, i120CN
RINNAI Condensing Gas Boiler, i120CN

Rinnai

9.9

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2

Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Natural Gas Water Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU
Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Natural Gas Water Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU

Rinnai

9.8

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3

INTBUYING 7 Branch PEX Manifold PEX Floor Heating Floor Heating Manifold Stainless Steel Radiant Floor Heating Set (Include 1/2'' adapters) for Hydronic Radiant Floor Heating
INTBUYING 7 Branch PEX Manifold PEX Floor Heating Floor Heating Manifold Stainless Steel Radiant Floor Heating Set (Include 1/2'' adapters) for Hydronic Radiant Floor Heating

INTBUYING

9.6

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4

Rinnai i150SN Condensing Gas Boiler, Whole Home Natural Gas Heater with Space-Saving Design and Smart Features, (150K BTU)
Rinnai i150SN Condensing Gas Boiler, Whole Home Natural Gas Heater with Space-Saving Design and Smart Features, (150K BTU)

Rinnai

9.4

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5

Noritz NRCB199DV-NG Indoor Direct Combination Boiler (Standard Vent Convertible) with Built-in Pump, max 199,900 DHW, 11.1 Gpm, 120,000 Btuh Space Heating-Natural Gas, Gray
Noritz NRCB199DV-NG Indoor Direct Combination Boiler (Standard Vent Convertible) with Built-in Pump, max 199,900 DHW, 11.1 Gpm, 120,000 Btuh Space Heating-Natural Gas, Gray

Noritz

9.2

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Temperature Controller, STC-1000 Digital Temperature Controller with Sensor Temp Sensor Electric Thermostat Control 110-220V

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ELECTECK Thermostat, 5-1-1 Day Programmable, Large Digital LCD Display, Compatible with Single Stage Electrical and Gas System, Up to 1 Heat/1 Cool, White

ELECTECK Thermostat, 5-1-1 Day Programmable, Large Digital LCD Display, Compatible with Single Stage Electrical and Gas System, Up to 1 Heat/1 Cool, White

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Navien 30004831C Motorized 3-Way Valve

Navien 30004831C Motorized 3-Way Valve

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3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit with Pressure Relief Valve, Clean Brass, 3/4 Inch Service Installation Valve for rheem,rinai,ecosmart,navien,noritz,takagi,bosch

3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit with Pressure Relief Valve, Clean Brass, 3/4 Inch Service Installation Valve for rheem,rinai,ecosmart,navien,noritz,takagi,bosch

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6

Thermo 2000 BTH Ultra 18 kW / 61416 BTU Electric Boiler for Water and Glycol Radiant Floor hydronic Heating System
Thermo 2000 BTH Ultra 18 kW / 61416 BTU Electric Boiler for Water and Glycol Radiant Floor hydronic Heating System

Thermo 2000

8.9

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7

WiFi Bluetooth Meat Thermometer, INKBIRD 4 Color Probe Rechargeable BBQ Thermometer IBBQ-4BW, APP Control | Graph | Calibration | Timer Alarm, Wireless Digital Thermometer for Smoker, Oven, Grilling
WiFi Bluetooth Meat Thermometer, INKBIRD 4 Color Probe Rechargeable BBQ Thermometer IBBQ-4BW, APP Control | Graph | Calibration | Timer Alarm, Wireless Digital Thermometer for Smoker, Oven, Grilling

Inkbird

8.7

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8

Rinnai 807000212 I Series Combi Primary Secondary Heating Kit
Rinnai 807000212 I Series Combi Primary Secondary Heating Kit

Rinnai

8.4

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9

Google Nest Thermostat E - Smart Thermostat + Google Nest Temperature Sensor Bundle - White
Google Nest Thermostat E - Smart Thermostat + Google Nest Temperature Sensor Bundle - White

Google

8.1

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10

Digital Room Thermostat, HYO6BW Digital LCD Display Heating 2 Wire Wirele Temperature Controller Ermostat Wireless Battery Programmable Thermostat
Digital Room Thermostat, HYO6BW Digital LCD Display Heating 2 Wire Wirele Temperature Controller Ermostat Wireless Battery Programmable Thermostat

Akozon

7.9

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