Literal question
<svar a="all" v="AT01A065 AT01A066">3. Primary type of heating<br /><div class="i1">[] District heating or block heating<br />[] Building central heating<br />[] Gas convectors<br />[] Electric heating (permanently attached radiators)<br />[] Central heating system for apartment (single-story heating system)<br />Primary fuel used (Please mark just one fuel):</div><br /><div class="i2">[] Wood Coal, coke, briquettes<br />[] Heating oil<br />[] Gas<br />[] Electricity (mobile electric heaters)<br />[] Other fuel</div><br /><div class="i1">[] Individual stove(s)<br />Primary fuel used (Please mark just one fuel):</div><br /><div class="i2">[] Wood Coal, coke, briquettes<br />[] Heating oil, fuel oil<br />[] Liquefied petroleum gas <br />[] Electricity (mobile electric heaters)<br />[] Other fuel</div><br /></svar>