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• Gas Boilers Wall Hanging Furnace Parts Convex Mouth 14 Plates Parallel Flow Secondary Heat Exchanger For Beretta Gas Boilers How to come to a decision the plate warmth exchanger suitable for you ?1. First verify the variety of plate warmth exchangersYou can verify the side brand of the unique board changer, and you may also measure the thickness. Confirm again whether or not or now not the water movement is parallel or crossBlow from one port to appear which port the air comes out from on the contrary side, if it comes out from a parallel port, it's a parallel stream it comes out from the other corner of the mouth, it is the right communication3. Confirm whether or not or now not the water outlet is crimped or flat4. Measure the space between the two screw holes, there are 148 and 154mm on the market

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