Mongolian Architect's 6-Year Work: 0.8 kW/h Solution to Heat at −40°C Becomes Reality

Ч.Батцэнгэл · 2025 · Улаанбаатар

OwnHouse platform is publicly presenting new performance figures for the energy-efficient single-family home heating system developed since 2019. Six years of testing and calculation reduced heating consumption from 4.2 kWh per hour to 0.8 kWh.

Why This Number Is Critical

0.8 kWh is the practical threshold for off-grid operation. Mongolia's average solar irradiation provides 4–5 peak hours daily. A 4 kW solar installation produces 12–16 kWh per day — combined with battery storage, this realistically balances heating demand. Systems above this threshold require adding a generator or grid connection.

"We had to address the four main sources of heat loss — walls, windows, entry points, and ventilation — separately. Improving one while ignoring the others was pointless."

Complete Infrastructure Solution

Beyond energy consumption, OwnHouse platform has partnered with the "Doctor ECO" brand's compact MBR — membrane bioreactor — treatment facility to solve water supply and wastewater challenges at remote construction sites.

Building Energy Certificate · A+ class · 61% savings · TSZTI-024/M50515

Application in the Tourism Sector

The triple combination of solar energy, OwnHouse heating system, and Doctor ECO water treatment solves three main infrastructure challenges — electricity, heating, and sanitation — in one package. This creates the ability to operate completely independent of the urban grid for individuals and companies building new tourist camps in Mongolia.

"A new tourist camp can be built anywhere — mountain ridge, middle of the desert, lake shore. Energy, water, heating — all solved on-site."

The platform emphasizes that construction quality, installation expertise, and local permit issues must each be addressed separately. However, it states that the three main infrastructure obstacles are now technologically resolved.