A new water heater ignitor can be purchased online at HomeDepot.com and Build.com, as of 2015. These sites specialize in selling products to the do-it-yourself homeowner.
HomeDepot.com can be browsed by department, or the inventory can be filtered by keyword. Customers can register for an account and place items in their carts until checkout. A variety of shipping options are available, with many products that can be shipped free to the nearest store. Customer reviews provide further insight into product quality and features.
Build.com offers free ground shipping on orders over $49. Expert live chat is available, or customer service representatives can be contacted through the provided toll-free number.