Engine Pre Heater Home › Forums › Operation of Our Aircraft › Engine Pre Heater This topic has 1 reply, 1 voice, and was last updated 2 years, 4 months ago by Tim Hornyak. Viewing 1 reply thread Author Posts January 6, 2017 at 19:36 #6653 Tim HornyakParticipant If anyone is interested in a Hornet Aircraft Engine Heater here are some real world numbers on the twin version placed in a AA1 engine compartment w cowl plugs installed. OAT 7F, insulated hangar 32, cylinders temps 53-56, EGT temps 55-58. Cheers. December 7, 2021 at 22:04 #16609 Tim HornyakParticipant Almost 4 years later and still getting same results for my engine pre- heating. Works well and simple to use. Added a picture of the unit. Attachments:You must be logged in to view attached files. Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In