Ondol (ON-dol; / ˈɒn.dɒl /, [1] Korean: 온돌; Hanja: 溫突/溫堗; Korean pronunciation: [on.dol]) or gudeul (구들; [ku.dɯl]) in Korean traditional architecture is underfloor heating that uses direct heat transfer from wood smoke to heat the underside of a thick masonry floor.

Most traditional Korean are heated by “ondol, a system a stone flues that distributes heat underneath the floor. Used before the Three Kingdom Period (18 B.C.-A.D. 668) by the Puyo tribes living in Manchuria, ondol came into wide use in Korea during the Koryo Period (918-1392).

Ondol (온돌;溫突), also known as goodle (구들) or banggoodle (방구들), is an underfloor heating system that has kept traditional houses in Korea warm for thousands of years.

Jan 5, 2025 · Ondol, also known as Gudeul, is an incredible underfloor heating system that’s existed for centuries in Korea. The general idea of an Ondol system is that it harnesses the power and pressure of the flow of smoke from the fireplace (traditionally used to cook meals and rice) to heat up the house, rather than using heat directly from the fire ...

The Ondol is a system of heating which aims to mirror this principle of nature. Fireplaces, iron stoves or radiators are all designed to supply heat horizontally, and are therefore less able to provide heat efficiently.

Apr 30, 2018 · Ondol, literally "warm stones," refers to an underfloor heating system unique to Korea. It has its roots in a primitive form of heating based on a hearth and flues dating back to the Bronze Age and the Proto-Three Kingdoms period.

Dec 4, 2021 · Ondol floors are the reason Korean homes have indoor living space where we take off shoes to enter and sit on warm floor, instead of chairs or sofas. The ondol floor design of the Korean...

In its traditional form, the ondol utilizes direct heat transferred from wood smoke to the underside of a thick masonry floor. In modern times, the term ondol refers to any type of under-floor heating in Korean housing. "Gudeul," meaning "baked stone," is another name for an ondol.

Mar 1, 2017 · Here we describe the application of ‘Ondol’, a traditional Korean heating system that was redesigned for improved efficiency, in remote villages in a mountainous region of Nepal. Total 10 models of Ondol were designed and fabricated, and the temperature profile and uniformity were characterized to select the optimal design.

In Korea, Ondol was developed to adapt to the cold, and Maru was developed to adapt to the heat. Ondol is a heating method that has been greatly developed in Korea, and has a close relationship with the lifestyle of our people, and is still widely used …