Walmart discounts a selection of electric fireplaces, with prices starting from $69. Plus, these orders receive free shipping. A couple of best bets:
ChimneyFree Infrared Quartz Electric Space Heater for $69 ($21 off)
Northwest Electric Indoor Wall Mounted Fireplace for $99.99 (pictured, low by $20)
There are many ways to get cheap and even free services and goods after reaching a certain age.