After 9 years of living in the same home, the owner decided to redefine comfort from the ground up.

By integrating MENRED’s Five-Constant System— constant temperature, humidity, oxygen, silence, and cleanliness — the old home was transformed from traditional convection air conditioning to aradiant cooling and heating system, combined with energy recovery ventilationand asolar energy storage system.

MENRED, radiant cooling system, radiant heating, ERV ventilation, solar energy storage, old house renovation, quiet comfort, low-carbon home

Project Overview

• Completion: May 2025
  
• Move-in: July 2025
  
• Total Area: 340㎡
  
• Layout: 3 bedrooms, 3 bathrooms, kitchen, living room, dining area, tea room, and an attic
  
• Budget: Approx. USD 150,000
  
• Climate: Cold and humid in winter, hot and humid in summer (up to 37°C, 70% humidity)
  

After moving back in during the hot and humid season, the homeowner shared:

“There’s no blowing air or noise from convection air conditioners anymore. The air feels fresh and natural, and my sleep quality has greatly improved.”

The system operates stably and efficiently, achieving both comfort and low-carbon living.

Eight Major Renovations

1. Insulation Upgrade– 110㎡ of internal polyurethane insulation (5cm thick), with airtight attic and sealed windows to reduce heat loss.
   
2. Radiant Cooling & Heating System– 150㎡ ceiling and 50㎡ wall radiant panels, custom-installed. The system runs withno airflow sensation and no noise, ensuring even temperature and natural comfort.
   
3. Floor Heating Integration– Retained 230㎡ of existing floor heating pipes, added aheat pump,Big3 pump station, andO3 manifoldfor efficient all-season operation.
   
4. Fresh Air & Dehumidification– Two MENRED G6 fresh air ventilators(350m³/h each), with centralized return and multi-point supply, ensuring constant oxygen and humidity control.
   
5. Negative Pressure Exhaust– Five BR300 exhaust fans in bathrooms, attic, and storage rooms for continuous removal of humidity and odors.
   
6. Smart Lighting System–Mibee smart lightingwith Philips dimmable lights and no-main-lamp design, offering modern aesthetics and intelligent control.
   
7. Central Vacuum System– Upgraded piping and fittings for easy cleaning and healthier indoor air.
   
8. Solar + Storage System– 30㎡ rooftop PV panels, 12kWh battery, and 6kW inverter dedicated to G6 fresh air units.
• Average sunlight: 3.8h/day
• Power generation: 22.8 kWh/day
• Annual total: ~8,322 kWh
  

Results

• No air blowing or noise
• Stable temperature and humidity
• Fresh and quiet air all day long
• Energy-efficient and low-carbon operation
• Enhanced sleep quality and overall comfort
  

This renovation proves that even a 9-year-old home can be reborn with MENRED’s integrated radiant and energy systems, achieving a perfect balance of comfort, quietness, and sustainability.