gas-fired 
adjective
Using gas as its fuel: gas-fired central heating...
- The work to replace ageing solid fuel central heating with gas-fired systems will cost £1m.
- Athy Town Council tenants can look forward to having gas-fired central heating systems installed in their homes within the next few years.
- Out of 213 units, 34 are gas-fired power plants, which account for 24 percent of the total power capacity.