Tavey Purification Limited TPL " ) , which uses IFRS , manufactures and sells portable heaters . TPL sells its heaters to large retailers such as Home Depot and Canadian Tire . The payment terms are FOB Shipping Point with payment due within 45 days after shipment . Up to 6 months after shipment retailers may return a maximum of 40 % of the heaters , with past experience showing that returns typically average 12 % Separate from the return policy , TPL offers a 30 - days warranty on its products at no additional cost to the retailers or the retailers ' customers . TPL's records show that warranty claims average 3 % of net sales . On November 16 , 2021 , TPL shipped heaters to retailers and invoiced the retailers $ 150,000 The cost of goods was $ 120,000