HT

HEAT Thailand

GR TECH CO., LTD.

Bangkok, Thailand

OtherSolar
Profile last updated: June 21, 2026

About

HEAT Thailand is a renewable energy company headquartered in Bangkok, Thailand specializing in Other, Solar.

HEAT Thailand, operated by GR TECH Co., Ltd., supplies heat pump systems for industrial, commercial and hospitality applications. Offerings include air source, water source and pool heat pumps, multi-function and hot water heat pumps, heat pump dryers and dehydrators, solar thermal systems, hot water storage tanks, and online preventive maintenance services. The company promotes energy saving and CO2 reduction through heat pump technology and has reported installations at manufacturing plants, hospitals, resorts and an onsen in Bangkok.

Headquarters

Bangkok, Thailand

Focus areas

heat pumphot water heat pumpwater source heat pumpair source heat pumppool heat pumpsolar thermalheat pump dryerwaste heat recoverypreventive maintenanceenergy savingCO2 reductionindustrial heat pump

Products & services

Business models

B2B

Value chain

EngineeringO&M

Locations

Headquarters

10240, Bangkok, Thailand

Projects

10

NHK Spring heat pump hot water system

OperationalIndustrial heat pump hot water system

Heat pump producing 75°C hot water for a polyurethane mold injection line, replacing a 125 kW electrical heater. Reported 50% electricity cost reduction and 2.5-year payback. Cold air by-product used to improve the air compressor room.

Client: NHK SPRING Co., Ltd

Boiler make-up water pre-heating heat pump

OperationalWater-to-water heat pump

150 kW water-to-water heat pump pre-heating make-up water for five boilers, with 60°C hot water and 7°C chilled water supplied to the factory. Reported savings of 1.8 million baht per year in natural gas and electricity.

0.15 MW capacity

Atlantic Laboratories heat pump hot water system

OperationalHeat pump hot water system

Heat pump producing 60°C hot water for the AHU heating coil. Cold air by-product used for the AHU cooling coil.

Client: Atlantic Laboratories Co., Ltd.

Cerebos cleaning line heat pump

OperationalHeat pump hot water system

Heat pump producing 60°C hot water for the cleaning line, replacing an electrical heater. Chilled water by-product used to improve the air handling unit.

Client: Cerebos Co., Ltd.

Yunomori Onsen & Spa heat pump

OperationalHeat pump hot and cold water system

Heat pump producing hot and cold water, replacing an electric pool heater and chiller. Reported energy cost saving of 4.4 million baht per year with 0.94-year payback.

Bangkok, ThailandClient: Yunomori Onsen & Spa

Dibuk Hospital heat pump hot water system

OperationalHeat pump hot water system

Heat pump producing 60°C hot water for 50 patient rooms.

Client: Dibuk Hospital

Citi Resort heat pump

OperationalHeat pump hot and cold water system

Heat pump producing hot and cold water, replacing an electric pool heater and chiller. Reported energy cost saving of 440,000 baht per year with 2.2-year payback.

Bangkok, ThailandClient: Citi Resort

Honda Automobile heat pump system

OperationalIndustrial heat pump

Heat pump system supplying heating for the ED line and pre-treatment, reducing boiler and chiller natural gas and electricity use. Reported savings of 3.8 million baht per year with 4.2-year ROI.

1 MW capacityClient: Honda Automobile

Thai Honda Manufacturing heat pump system

OperationalIndustrial heat pump

Heat pump system supplying heating for pre-treatment and the ED line, reducing boiler and chiller natural gas and electricity use. Reported savings of 5.4 million baht per year with 2.4-year ROI.

0.4 MW capacityClient: Thai Honda Manufacturing

Auto Works heat pump system

OperationalIndustrial heat pump

Heat pump system supplying heating for pre-treatment and the ED line, reducing boiler and chiller LPG and electricity use. Reported savings of 1.2 million baht per year with 2.8-year ROI.

0.15 MW capacityClient: Auto Works Co., Ltd.

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