1. Connection heater to cockpit (CO2 Save).
<p>2. Frech Air from cowling to heater.
</p>
Engine 33 hp Briggs and Stratton Vanguard
<a href="//commons.wikimedia.org/wiki/User:Anne1234" title="User:Anne1234">Anne1234</a>
<span class="int-own-work" lang="en">Own work</span>