Literal question
<svar a="all" v="IT01A045 IT01A046 IT01A047 IT01A048 IT01A049"><span class="em">4.1 Indicate the type of heating system available in the dwelling (more than one answer is possible)</span><br /><div class="i1">[] 1 <span class="ital">Centralized</span> -system used by various dwellings<br />[] 2 <span class="ital">Fixed independent</span> system for exclusive use of the dwelling<br />[] 3 <span class="ital">Fixed single</span> systems (fireplace, heater, independent radiators, etc.) that heat all or most of the dwellings<br />[] 4 <span class="ital">Fixed single</span> systems (fireplace, heater, independent radiators, etc.) that heat only <span class="ital">some parts</span> of the dwelling<br />[] 5 <span class="ital">Do not have</span> any of the systems of equipment mentioned above [skip to point 5]</div><br /></svar>