i purchased a giardino oven dome from forno bravo. it had some small cracks on the outside of the dome to be safe i put a coat of refractory cement over it .i also put a coat of refractory cement under the floor. i the put the insulation on. i used a metal cover over all of this.i cannot get anything to light on the inside to help dry out the oven. i have been using two 100 watt bulbs to heat the dome. i am in ohio the weather is 32 to 38 degrees now. what steps should i take to cure this oven?