Carburetor heat info?

[Nato]

I appear to get carb icing flying through clouds in a hurricane/spitfire but have no means to de-ice.The Hurricane is carburated , any thoughts short of dont fly through clouds.Thanks

[IvanK]

Merlin Carb throats were warmed continuously by a jacketed design no separate Carb heat was fitted or required.

[Nato]

Thank you for the clarifing , much appicated.

[Nato]

So why does engine start to run poorly after only a hand full of seconds in a cloud??

[IvanK]

Me thinks Prop icing.

[bongodriver]

Yep...prop ice or maybe even ice forming around the air intake scoop.