Yes, you can use heat tools on deep wave wigs, but it depends on the type of wig you have. Here are some important considerations and tips:
Human Hair deep wave wigs

Heat Tools Allowed: Human hair wigs can be styled with heat tools such as curling irons, flat irons, and blow dryers.
Low Heat Settings: Always use the lowest heat setting necessary to achieve your desired style. High temperatures can damage the hair fibers.
Heat Protectant: Apply a heat protectant spray before using any heat tools to minimize damage.
Styling Tips: For best results, use a diffuser attachment on your blow dryer if you need to dry the wig quickly.Also, avoid using heat tools on wet hair, as this can cause significant damage.
Synthetic deep wave wigs
Heat Resistance: Most synthetic wigs are not heat-resistant and can be damaged by heat tools. If your synthetic wig is specifically labeled as heat-resistant, you can use heat tools, but only at very low temperatures.
Avoid Heat: For non-heat-resistant synthetic wigs, avoid using heat tools altogether. Instead, opt for heatless styling methods like braiding or using flexi rods.
General Care Tips
Washing and Conditioning: Wash your deep wave wigs every 1-2 weeks using a sulfate-free shampoo and a hydrating conditioner.Avoid rubbing or twisting the hair during washing.
Air Drying: Air drying is the best method to avoid heat damage, especially for human hair wigs.
Detangling: Use a wide-tooth comb or a wig brush to detangle the wig gently, starting from the ends and working your way up.
Moisturizing: For human hair wigs, use a leave-in conditioner or moisturizing spray to keep the hair soft and hydrated.
Protective Storage: Store your wig on a wig stand or mannequin head to maintain its shape and prevent tangling.
By following these guidelines, you can maintain the beauty and longevity of your deep wave wigs while enjoying the flexibility of styling it with heat tools when appropriate.