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Question about gasoline heater

Scheduled Pinned Locked Moved Piston & Turbine Dukes
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  • D Offline
    D Offline
    DxMarovitch
    wrote on last edited by
    #1

    I'm just curious, does the fuel consumption of the gasoline heater scale based on demand? So like, if at high altitude where it's super cold, I pull the intercooler bypasses fully closed, will the heater use a lot less gas than if they were full open and the heater can't keep up (red text on the temp setpoint)?

    Completely just curious - loving the Dukes just as much as release day! Flying them just doesn't get old.

    Dan

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  • Black SquareB Offline
    Black SquareB Offline
    Black Square Black Square Developer
    wrote on last edited by
    #2

    I does not, unfortunately. I should have thought of that, since the air conditioning compressor load is dependent on how hard the AC has to work to maintain cabin temperature. It's very easy to add, so I will see about it for the next update.

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  • D Offline
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    DxMarovitch
    wrote on last edited by
    #3

    Gotcha - I don't know how the heater works in real life, not sure if it actually has a variable flow or not. I was kind of thinking it would cycle the burner on and off based on heating demand, like an RV furnace would, but could be totally wrong about that. Was just curious =D

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  • Black SquareB Offline
    Black SquareB Offline
    Black Square Black Square Developer
    wrote on last edited by
    #4

    I believe you are actually correct about that. I read the Janitrol manual at some point, and I believe it had a bi-modal regulator. Since I don't simulate that, the next best thing would be to simulate its effect on total fuel flow.

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  • M Offline
    M Offline
    MatzeH84
    replied to Black Square on last edited by MatzeH84
    #5

    @Black-Square said in Question about gasoline heater:
    Since I don't simulate that

    Yet. 😀
    Enjoying the Dukes immensely. Since FSX btw.. Currently the absolute reference in GA.

    One of the last flights I had the Autopilot misbehaving, as alt mode didn't want to switch off. After a lot of trying different things I cycled the circuit breaker.
    It worked. I don't even think this was intended but more a bug, but to be able to fix it this way was great.

    It's absolutely fantastic how you consider user input about the fuel burn rate of a cabin heater. Keep it up!

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  • M Offline
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    Mustang
    wrote on last edited by
    #6

    I imagine one of Nick's worst enemies is potential 'feature creep' - deciding what to implement and what to leave on the wishlist. Especially when us users start making demands for every aircraft...

    Whether they come or not, I also love all these little features :)

    I still wonder about the typical operation for heating the Duke. Perhaps different pilots have different preferences.
    Once airborne, I had thought it preferable to use heat from the engines instead of the combustion heater, but seems this may not be the case. In the sim (especially) it's hard to regulate the heat with the pressurisation hot air controls. I've pulled the air handles out partway before to alleviate load on the combustion heater, then realised my cabin was 30°C a short time later... toasty!

    Seems that relying on the combustion heater alone with a boost from the pressurisation hot air (where needed) is the way to go. This is more or less indicated in the manual's guidance, typically at -12°C OAT and below, yet it also says the combustion heater is a notoriously dangerous piece of equipment! So roll the dice and take your chances...

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