I have two heating model PCH, they were included i...

I have two heating model PCH, they were included in a reminder by the company stelrpo who sent us a safety device for each unit of heating and now a few years later they send me a letter that tells me to throw them and they give me a $ 20 discount on every heater that is worth a lot more.
What a lack of responsibility of this company ... Think before you buy one of their product, if there is a defect, their solution is to scrap it and buy them another ...