But let's back up for a moment. You may be asking
Without Ephedra, can H-Burn really be thermogenic?

Absolutely.

Thermogenic = 'produces heat'. Thus, your stove is thermogenic (once you turn it on), as is your body.

Heat = energy. As your body gives off heat, it's losing energy, which ultimately comes from the food you eat. Thus, the more thermogenesis you have going on in your body, the less likely you are to get fat.

You don't need Ephedra (or ephedrine period) to increase your thermogenic rate!

Dr. Moritani at Kyoto University has developed a technology for measuring the thermogenic effect of substances such as caffeine. Moritani's group (Nishijima et al., 2002) gave young men a caffeine capsule (300 mg, swallowed with 100 ml of water) or a placebo capsule 2 hours before performing low-intensity cycling. Those receiving caffeine burned more fat during exercise than those taking the placebo pill.

Great! So 300 mg of caffeine taken before working may speed up your fat-burning 'engines'. But will less work?

Yes. In assessing the research on this matter, Dulloo et al. (1999) conclude that a single dose of at least 100 mg of caffeine is needed to boost thermogenesis for 1-2 hours or more. Taking even more (600-1000 mg/day) can increase 24-hour metabolic (calorie-burning) rate (Dulloo et al., 1989; Bracco et al., 1995).

Each serving of H-Burn contains 100 mg of caffeine plus 910 mg of Guarana, a natural source of the potent stimulant caffeine.
Also, H-Burn contains 100 mg of Coleus forksholii, a source of forskolin.

Biochemists use forskolin extensively in their research. Why? Because forskolin powerfully activates cellular signalling pathways involved in the breakdown of fat (lipolysis). It may also affect those controlling the burning (oxidation) of fat. Since caffeine converges on these same pathways, forskolin has been added to H-Burn to act as a 'fat-burning amplifier' of sorts.
We know caffeine is effective orally, but what about forskolin?

The oral effectiveness of forskolin has been demonstrated in animals (Bhat et al., 1983), providing evidence that it may be effective in humans, also. Indeed, anecdotally, forskolin has been described as having a mood-enhancing effect that makes for much easier control over one's appetite -and more enjoyable workouts! Again, these are anecdotal reports, and have not yet been proven in controlled clinical trials.

If you're looking for an Ephedrine-free fat-burning advantage, but you want to be sure of experiencing thermogenic effects similar to 'old-school' Ephedra-based products, then save yourself some money and invest in H-Burn RIGHT NOW.