Outer Limits 4x4 Board

Hey all

I've been told that with NGK Plugs the smaller the heat number the hotter the plug (not reliable source - Autobarn!!!)
Opposite to all other plugs on the market

as in A BPR4ES will be hotter than a BPR5ES

Can any1 pls confirm or deny this as i want to run at hotter plug but am now confused

Thanks Pep

Autobarn is right for a change. Smaller heat number=hotter plug.

the 6ES plugs are the most common heat range plug.

Trains

WOZ wrote:Autobarn is right for a change. Smaller heat number=hotter plug.

WooHoo AutoBarn got one right