after my very first season and learning that the cheap reptipro was a waste of money and time we built our own. for the last 2 yrs my old royal crown cola fridge has been running non stop and no problems. 150 on fridge & gutted added light switch dimmer for fans and an outlet for the heat tape controlled by the old brick style thermostat under the unit . all in maybe 3-400 but i did pay a premium for the fridge as i needed one dearly with a few gravid females at the time! but yes if your in it to produce babies id recommend that you build your own ....