Trappex
Heating-system protection developed from hands-on gas engineering experience, with practical products designed to protect systems from debris, trapped air and pressure problems.
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TomKat Engineer Shop
TomKat Gas Rating Reference Mug — Blue, 11 oz
TomKat Gas Rating Reference Mug — Blue, 11 oz
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£14.50
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£14.50
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Put a useful reminder next to your next brew. This blue 11 oz TomKat mug pairs our cat mascot with a clear natural-gas, metric-meter reference panel and a link to our gas-rate calculator.
• Ceramic mug with blue rim, handle and inside
• 11 oz: 9.6 cm high and 8.3 cm diameter
• Printed to order and dispatched by Printful
For trained engineers. The reference uses measured gas volume and actual elapsed time, the appropriate gross calorific value and a clearly labelled approximate gross-to-net conversion. Follow the recognised test method and the appliance manufacturer’s instructions. Confirm the gas, meter readings, calorific value and gross/net basis before comparing with rated input. The mug is a reminder, not a replacement for training or current technical guidance.
Use the calculator: https://tom-kat.co.uk/gas-rate-calculator/
• Ceramic mug with blue rim, handle and inside
• 11 oz: 9.6 cm high and 8.3 cm diameter
• Printed to order and dispatched by Printful
For trained engineers. The reference uses measured gas volume and actual elapsed time, the appropriate gross calorific value and a clearly labelled approximate gross-to-net conversion. Follow the recognised test method and the appliance manufacturer’s instructions. Confirm the gas, meter readings, calorific value and gross/net basis before comparing with rated input. The mug is a reminder, not a replacement for training or current technical guidance.
Use the calculator: https://tom-kat.co.uk/gas-rate-calculator/
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