18
Inventory of Innovative Indoor Smoke
Alleviating Technologies in Nepal
3.2.5 Three potholes institutional ICS (IICS)
Figure 3.12: Three potholes institutional ICS
Source: AEPC
Year of dissemination
Cost
Quantity disseminated
Technological description
Disseminated regions
Advantages
Disadvantages
Major organisations involved in
promotion/dissemination
Early 90s onwards
NRs. 250 to 700 (varies with size and base construction)
Around 1000
A grate is placed in the first chamber and two horizontal bars
which serves as top grate and support for smaller diameter pots.
In order to fit the pots larger than the pothole diameter, pot rests
are recommended. Efficiency varies from 15 to 25 per cent.
Terai and especially in mid hills.
High efficiency and fuel saving (35-40 per cent). Cooks three
items at a time, suitable in restaurants and institutions (barrack,
hostels, roadside hotels etc). Saves 20 to 30 per cent fuel wood
compared to traditional stoves.
Only trained promoters can construct. Not suitable for space
heating.
CRT/N, REDP and some other organisations.